Affordable Intel CPUs with a free multiplyer, that was something you were looking for in vain until now but with the K-series Intel now offers a very overclocking friendly processors which comes at a reasonable price. For us this is reason enough to be curious about this products performance and especially its overclockability.
How Intels 875 K CPU fights it's way though our benchmarking parcours and how good it can be overclocked that's what we uncover on the following pages.
Diesen Artikel im Forum diskutieren. [pagebreak]
Specifications
| i5 750 | i7 870 | i7 875 K | i7 975 XE | i7 980 X | |
| Codename | Lynnfield | Lynnfield | Lynnfield | Nehalem | Nehalem |
| Socket | LGA 1156 | LGA 1156 | LGA 1156 | LGA 1366 | LGA 1366 |
| Manufacturing | 45 nm | 45 nm | 45 nm | 45 nm | 32 nm |
| Transistors | 774 Mio | 774 Mio | 774 Mio | 731 Mio | 1.17 Bio |
| Die-size | 296 mm2 | 296 mm2 | 296 mm2 | 263 mm2 | 248 mm2 |
| Clock | 2.66 GHz | 2.93 GHz | 2.93 GHz | 3.33 GHz | 3.33 GHz |
| Cores | 4C / 4T | 4C / 8T | 4C / 8T | 4C / 8T | 6C / 12T |
| Turbo | Yes | Yes | Yes | Yes (+266 MHz) | Yes (+266 MHz) |
| Bus Speed | 133 MHz | 133 MHz | 133 MHz | 133 MHz | 133 MHz |
| Memory | DDR3 | DDR3 | DDR3 | DDR3 | DDR3 |
| Memory controller | Dual Channel | Dual Channel | Dual Channel | Triple Channel | Triple Channel |
| QPI | 4.26 GT/s | 4.26 GT/s | 4.26 GT/s | 6.4 GT/s | 6.4 GT/s |
| L1 Execution Cache | 32 KByte | 32 KByte | 32 KByte | 32 KByte | 32 KByte |
| L1 Data Cache | 32 KByte | 32 KByte | 32 KByte | 32 KByte | 32 KByte |
| L2 Cache | 256 KByte | 256 KByte | 256 KByte | 256 KByte | 256 KByte |
| L3 Cache | 8 MB shared | 8 MB shared | 8 MB shared | 8 MB shared | 12 MB shared |
| TDP | 95 Watt | 95 Watt | 95 Watt | 130 Watt | 130 Watt |
| C1E technology | Yes | Yes | Yes | Yes | Yes |
| Enhanced Intel Speed Step | Yes | Yes | Yes | Yes | Yes |
| Virtualisation | Vanderpool | Vanderpool | Vanderpool | Vanderpool | Vanderpool |
| Instruction sets | MMX, SSE, SSE2, SSE3 SSE4.2, EM64T |
MMX, SSE, SSE2, SSE3 SSE4.2, EM64T |
MMX, SSE, SSE2, SSE3 SSE4.2, EM64T |
MMX, SSE, SSE2, SSE3 SSE4.2, EM64T |
MMX, SSE, SSE2, SSE3 SSE4.2, EM64T |
Diesen Artikel im Forum diskutieren. [pagebreak]
Die Lynnfield CPU
With Lynnfield Intel presents Bloomfields smaller brother which should show it's muscles especially in the mainstream market. In direct comparison to Bloomfield, Lynnfield is equipped with a dual-channel instead of a triple-channel memory interface. The i5 models have no hyperthreading but every single Lynnfield CPU comes with an enhanced Turbo-Mode. Intels arguments for a Turbo-Mode which is able to dynamically overclock the CPU by up to 666 MHz or in other words five multiplyer stpes is, that most of the software on the market is still not optimized for multithreaded CPUs and therefore the user mainly profits from higher clock speeds than massive parallelism.
Already with the Bloomfield Intel has been very proud of the scalability of Nehalems architecture, respectively the relative easyness to adapt the architecture to different markets. As a consequence it isn't a surprise that there weren't many changes on the "Die" itself. The only conspicuity is the fact that the Lynnfield CPUs carry about 40 million more transistors than their Bloomfield equivalents.
Diesen Artikel im Forum diskutieren. [pagebreak]
Test setup
| Mainboards |
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| CPUs |
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| Speicher |
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| Grafikkarten |
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| Festplatte |
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| Netzteil |
|
Diesen Artikel im Forum diskutieren. [pagebreak]
3DMark 06
3DMark 06 is getting older these days. Therefore if you are using really powerful graphic cards you will hit CPU limitation which means that the graphic card isn't the bottleneck in the system. This is also the reason why in recent high-end desktop systems 3DMark 06 scales nicely with the CPU and the graphic card has much less influence on the scores.
Total
| 3DMark 06 Total | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 20'380 | 133.39 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 18'825 | 123.22 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 18'368 | 120.23 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 17'729 | 116.04 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 17'617 | 115.31 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 17'463 | 114.30 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 17'330 | 113.43 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 16'218 | 106.15 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 16'197 | 106.02 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 15'688 | 102.68 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 15'278 | 100.00 % |
| more is better | ||
CPU
| 3DMark 06 CPU | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 7'466 | 158.35 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 6'007 | 127.40 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 5'908 | 125.30 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 5'539 | 117.48 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 5'529 | 117.26 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 5'329 | 113.02 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 5'166 | 109.57 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 5'118 | 108.54 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 4'715 | 100.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 4'527 | 104.15 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 4'242 | 89.97 % |
| more is better | ||
3DMark Vantage
3DMark Vantage is able to squeeze nearly everything out of a recent system. Therefore the feature liste is also pretty long: DirectX10, FP16-HDR, motion blur, parallax occlusion mapping, GPU-physics simulation and different shader effects are being used to even make recent high-end systems struggle.
Total
| 3DMark Vantage Total | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 14'184 | 109.57 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 13'506 | 104.33 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 13'391 | 103.45 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 13'256 | 102.40 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 13'250 | 102.36 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 13'183 | 101.84 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 12'949 | 100.00 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 12'945 | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 12'715 | 98.22 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 12'035 | 92.97 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 11'444 | 88.40 % |
| more is better | ||
CPU
| 3DMark Vantage CPU | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 32'154 | 189.25 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 21'472 | 126.38 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 20'078 | 118.18 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 19'921 | 117.25 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 19'285 | 113.51 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 18'444 | 108.56 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 18'605 | 109.51 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 16'990 | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 16'407 | 96.57 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 12'791 | 75.29 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 11'054 | 67.37 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Cinebench
The test procedure consists of two main components: The first test sequence is dedicated to the computer's main processor. A 3D scene file is used to render a photoreaslistic image. The scene makes use of various CPU-intensive features such as reflection, ambient occlusion, area lights and procedural shaders. During the first run the benchmark only uses one CPU (or CPU core) to ascertain a reference value. On computers that have multiple CPUs or CPU cores and on those that simulate multiple CPUs (via HyperThreading or similar technolgies), Cinebench will run a second test using all available CPU power.
1 CPU
| Cinebench R10 1 CPU | Percent | |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 174 sec | 78.03 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 178 sec | 79.82 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 180 sec | 80.72 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 187 sec | 83.86 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 195 sec | 87.44 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 198 sec | 88.79 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 203 sec | 91.03 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 207 sec | 92.83 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 223 sec | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 225 sec | 100.89 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 237 sec | 106.28 % |
| less is better | ||
X CPU
| Cinebench R10 X CPU | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 31 sec | 56.36 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 43 sec | 78.18 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 47 sec | 85.45 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 48 sec | 87.27 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 48 sec | 87.27 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 50 sec | 90.10 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 52 sec | 94.54 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 52 sec | 94.54 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 55 sec | 100.00 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 63 sec | 114.55 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 66 sec | 83.33 % |
| less is better | ||
POV-Ray 3.7
Pov-Ray is a raytracer which comes with an integrated benchmark routine that allows CPU single- and multicore performacne. Therefore a predefined 3D-Scene is being rendered twice by the CPU and as a result you get a PPS (Pixel per Secon) value.
Singlethread
| POV-Ray Singlethread | Percent | |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 932.21 PPS | 138.40 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 907.25 PPS | 134.69 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 865.92 PPS | 128.56 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 864.52 PPS | 128.35 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 807.34 PPS | 119.86 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 796.06 PPS | 118.19 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 792.85 PPS | 117.71 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 776.52 PPS | 115.29 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 748.13 PPS | 110.08 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 734.09 PPS | 108.99 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 673.56 PPS | 100.00 % |
| more is better | ||
Multithread
| POV-Ray Multithreaded | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 6'594.00 PPS | 178.93 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 4'660.01 PPS | 139.79 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 4'342.65 PPS | 130.27 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 4'309.88 PPS | 129.29 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 4'003.79 PPS | 120.11 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 3'840.94 PPS | 115.22 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 3'685.11 PPS | 100.55 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 3'605.33 PPS | 108.54 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 3'333.51 PPS | 100.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 3'126.46 PPS | 93.79 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 2'672.07 PPS | 80.16 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
SiSoft Sandra 1
SiSoft Sandra is a theoretical multi purpose benchmark suite which is able to show differences in CPU architectures. We split the tests with SiSoft Sandra into two parts. Therefore on this page you'll find Arithmetic-, Multimedia- and Cryptography-benchmarks.
Arithmetik
| SiSoft Sandra - Arithmetik - Drystone | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 153.00 GIPS | 240.72 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 82.58 GIPS | 129.92 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 76.77 GIPS | 120.78 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 76.30 GIPS | 120.04 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 73.16 GIPS | 115.10 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 71.68 GIPS | 112.78 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 69.91 GIPS | 109.99 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 68.53 GIPS | 107.81 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 65.56 GIPS | 103.15 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 63.56 GIPS | 100.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 44.71 GIPS | 70.34 % |
| more is better | ||
| SiSoft Sandra - Arithmetik - Whetstone | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 130.72 GFLOPS | 234.64 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 71.95 GFLOPS | 129.15 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 66.70 GFLOPS | 119.72 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 64.17 GFLOPS | 116.31 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 61.40 GFLOPS | 110.21 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 61.29 GFLOPS | 110.02 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 59.28 GFLOPS | 106.41 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 55.71 GFLOPS | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 55.55 GFLOPS | 99.71 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 36.88 GFLOPS | 66.20 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 31.97 GFLOPS | 60.98 % |
| more is better | ||
Multimedia
| SiSoft Sandra - Multimedia - Integer | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 279.17 MPixel/s | 206.93 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 222.85 MPixel/s | 165.18 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 175.93 MPixel/s | 130.40 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 162.22 MPixel/s | 120.24 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 162.11 MPixel/s | 120.16 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 155.65 MPixel/s | 115.37 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 150.19 MPixel/s | 111.32 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 148.78 MPixel/s | 110.28 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 134.91 MPixel/s | 100.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 149.22 MPixel/s | 90.41 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 116.72 MPixel/s | 86.52 % |
| more is better | ||
| SiSoft Sandra - Multimedia - Fliesskomma | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 210.19 MPixel/s | 201.62 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 137.16 MPixel/s | 131.57 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 135.49 MPixel/s | 129.97 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 125.15 MPixel/s | 120.05 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 125.10 MPixel/s | 120.00 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 119.90 MPixel/s | 115.01 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 114.74 MPixel/s | 110.06 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 114.44 MPixel/s | 109.78 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 104.25 MPixel/s | 100.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 91.48 MPixel/s | 87.75 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 90.02 MPixel/s | 86.35 % |
| more is better | ||
Crytography
| SiSoft Sandra - Kryptographie - AES 256 | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 11'000 MB/s | 2282.16 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 724 MB/s | 150.21 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 625 MB/s | 129.67 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 579 MB/s | 120.12 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 573 MB/s | 118.88 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 554 MB/s | 114.94 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 530 MB/s | 109.96 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 528 MB/s | 109.54 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 484 MB/s | 100.41 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 482 MB/s | 100.00 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 456 MB/s | 94.61 % |
| more is better | ||
| SiSoft Sandra - Kryptographie - SHA 256 | Percent | |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 592 MB/s | 132.44 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 1'032 MB/s | 230.87 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 887 MB/s | 198.43 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 581 MB/s | 129.98 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 537 MB/s | 120.13 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 536 MB/s | 119.91 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 522 MB/s | 116.78 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 514 MB/s | 114.99 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 513 MB/s | 114.77 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 492 MB/s | 110.07 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 447 MB/s | 100.00 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
SiSoft Sandra 2
At this point we deliver the values regarding Memory Bandwidth, Memory Latency as well as Memory and Cache Access.
Memory bandwidth
| SiSoft Sandra - Speicherbandbreite - Integer | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 26.62 GB/s | 101.41 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 26.60 GB/s | 101.33 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 26.54 GB/s | 101.10 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 26.48 GB/s | 100.88 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 26.40 GB/s | 100.57 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 26.25 GB/s | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 19.64 GB/s | 74.82 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 14.95 GB/s | 56.95 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 14.51 GB/s | 55.28 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 13.36 GB/s | 50.90 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 13.00 GB/s | 49.52 % |
| more is better | ||
| SiSoft Sandra - Speicherbandbreite - Fliesskomma | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 26.58 GB/s | 101.33 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 26.56 GB/s | 101.26 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 26.58 GB/s | 101.33 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 26.49 GB/s | 100.99 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 26.40 GB/s | 100.65 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 26.23 GB/s | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 19.64 GB/s | 74.88 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 15.10 GB/s | 57.57 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 14.62 GB/s | 55.74 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 13.36 GB/s | 50.93 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 13.00 GB/s | 49.56 % |
| more is better | ||
Memory latency
| SiSoft Sandra - Speicherlatenz | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 62 ns | 93.93 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 63 ns | 95.45 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 63 ns | 95.45 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 64 ns | 96.97 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 65 ns | 98.48 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 66 ns | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 68 ns | 103.03 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 80 ns | 121.21 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 81 ns | 122.72 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 82 ns | 124.24 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 82 ns | 124.24 % |
| less is better | ||
Memory and cache access
| SiSoft Sandra - Speicher und Cache Zugriff | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 98.67 GB/s | 146.37 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 78.06 GB/s | 115.80 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 74.66 GB/s | 110.76 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 72.89 GB/s | 108.13 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 71.05 GB/s | 105.40 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 71.00 GB/s | 105.33 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 67.54 GB/s | 100.19 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 67.41 GB/s | 100.00 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 57.69 GB/s | 85.58 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 53.94 GB/s | 80.02 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 51.00 GB/s | 75.66 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Super Pi
Meanwhile Super Pi even in its latest version has become pretty old. Never the less it is able to show scaling to the clock speed nicely.
1M
| Super Pi 1.5 XS - 1M | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 11.589 sec | 76.66 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 11.700 sec | 77.40 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 11.700 sec | 77.40 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 12.636 sec | 83.59 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 13.177 sec | 87.17 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 13.260 sec | 87.71 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 13.760 sec | 91.02 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 13.975 sec | 92.45 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 15.117 sec | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 19.376 sec | 128.17 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 21.466 sec | 142.00 % |
| less is better | ||
32M
| Super Pi 1.5 XS - 32M | Percent | |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 635.233 sec | 79.43 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 635.701 sec | 79.48 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 631.426 sec | 78.95 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 678.429 sec | 84.83 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 683.795 sec | 85.50 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 701.328 sec | 87.69 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 707.463 sec | 88.08 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 734.089 sec | 91.79 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 799.781 sec | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 1173.496 sec | 146.73 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 1294.459 sec | 161.85 % |
| less is better | ||
wPrime
wPrime is based on a multithreaded algorithm to calculate the square root to up to 32 billion digits. Therefore it is possible to put 100 percent load on every core or thread and to see differences between architectures.
32M
| wPrime - 32M | Percent | |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 35.132 sec | 76.16 % |
| Intel Core i7 980 X 3.33 GHz DDR3-1600 | 35.338 sec | 76.61 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 35.406 sec | 76.75 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 36.786 sec | 79.74 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 38.297 sec | 83.02 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 39.243 sec | 85.07 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 39.965 sec | 86.64 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 40.395 sec | 87.07 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 41.901 sec | 90.85 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 45.771 sec | 99.22 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 46.130 sec | 100.00 % |
| less is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
WinRAR
WinRAR is a well known archivier. It is highly efficient and it also comes with an integrated benchmark routine. We also do a real world application be archiving a folder which exists on the hard drive.
Integer Test
| WinRAR - Interger Test | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 3'998 KB/sec | 113.61 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 3'929 KB/sec | 111.65 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 3'849 KB/sec | 109.38 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 3'738 KB/sec | 106.22 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 3'694 KB/sec | 104.97 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 3'519 KB/sec | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 3'465 KB/sec | 98.47 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 3'251 KB/sec | 92.38 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 2'905 KB/sec | 82.55 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 2'395 KB/sec | 68.06 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 2'395 KB/sec | 68.06 % |
| more is better | ||
Folder compression
| WinRAR - Ordner Kompression (669 Dateien / 32 Ordner / 694 MB) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 122 sec | 82.99 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 130 sec | 88.43 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 135 sec | 91.83 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 138 sec | 93.88 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 141 sec | 95.91 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 147 sec | 100.00 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 174 sec | 118.37 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 175 sec | 119.05 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 181 sec | 123.13 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 190 sec | 129.25 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 215 sec | 146.63 % |
| less is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Crysis DirectX10
Crysis is still one of the games which has very high system requirements. Therefore developer Crytek implemented Direct3D-10-API, High-Dynamic-Range-Rendering, Parallax Occlusion Mapping, Soft Shadows, Motion Blur, Depth of Field as well as Soft Particles. We test Crysis by using DirectX9 as well as DirectX10 to show CPU-sacaling especially which low resolutions. If we look at the high resolutions we are able to spot that the CPUs influence compared to the graphic card becomes much less important.
Crysis DirectX10
800 x 600, low details
| Crysis DirectX10 (800 x 600 low details) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 156.42 fps | 124.64 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 146.41 fps | 116.66 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 139.91 fps | 111.48 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 135.65 fps | 108.09 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 132.60 fps | 105.66 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 125.50 fps | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 122.66 fps | 97.74 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 109.52 fps | 87.67 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 107.91 fps | 85.98 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 90.35 fps | 71.99 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 89.77 fps | 71.53 % |
| more is better | ||
1920 x 1080, very high details, 16x AA
| Crysis DirectX10 (1920 x 1080 high details, 16x AA) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 24.65 fps | 125.57 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 19.79 fps | 100.79 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 19.74 fps | 100.58 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 19.72 fps | 100.48 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 19.69 fps | 100.26 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 19.63 fps | 100.00 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 19.55 fps | 99.59 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 19.35 fps | 98.57 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 19.32 fps | 98.42 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 17.15 fps | 87.37 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 17.03 fps | 86.75 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
PT Boats Knights of Seas DirectX10
PT Boats Knights of Seas is based on the Direct-3D-10 API, supports multicore CPUs and comes with a physics engine. Also at this point we see a good scaling of the CPU at low resolutions and nearly no influence when applying high resolutions.
1024 x 768, low details
| PT Boats Knights of Seas DirectX10 (1024 x 768 low details) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 99.5 fps | 132.84 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 91.6 fps | 123.45 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 88.4 fps | 118.02 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 84.5 fps | 112.82 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 82.0 fps | 109.48 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 75.1 fps | 100.27 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 74.9 fps | 100.00 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 74.8 fps | 99.87 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 74.2 fps | 99.07 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 68.5 fps | 91.15 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 67.0 fps | 89.45 % |
| more is better | ||
1920 x 1080, high details, 8x AA
| PT Boats Knights of Seas DirectX10 (1920 x 1080 high details, 8x AA) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 34.9 fps | 104.18 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 34.1 fps | 101.79 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 33.9 fps | 101.19 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 33.7 fps | 100.60 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 33.7 fps | 100.60 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 33.6 fps | 100.30 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 33.6 fps | 100.30 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 33.5 fps | 100.00 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 33.5 fps | 100.00 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 30.9 fps | 92.23 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 30.7 fps | 91.64 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Resident Evil 5 DirectX10
Resident Evil uses nearly every modern rendering technology: HDR, Hemisphere Lighting, Soft Shadows, Soft Particles, Field- und Motion-Blur oder auch Alpha to Coverage and static Ambient Occlusion. Furthermore Resident Evil 5 has been optimized for multicore architectures and already comes DirectX11 ready. By using the DirectX9 as well as the DirectX10 benchmark we can again show you CPU-scaling with low resolutions and the compared to the CPU overproportional influence of the graphics card at high resolutions.
Resident Evil DirectX10
800 x 600, low details
| Resident Evil DirectX10 (800 x 600 low details) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 195.0 fps | 135.56 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 170.0 fps | 116.44 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 163.0 fps | 111.64 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 160.2 fps | 109.73 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 160.2 fps | 109.73 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 154.9 fps | 106.10 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 146.0 fps | 100.00 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 126.7 fps | 86.78 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 126.1 fps | 86.67 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 110.7 fps | 75.82 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 110.6 fps | 75.75 % |
| more is better | ||
1920 x 1080, high details, 8x AA
| Resident Evil DirectX10 (1920 x 1080 high details, 8x AA) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 74.8 fps | 101.36 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 74.3 fps | 100.68 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 74.3 fps | 100.68 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 74.2 fps | 100.54 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 74.1 fps | 100.41 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 74.0 fps | 100.27 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 73.8 fps | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 72.9 fps | 98.78 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 72.1 fps | 81.16 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 60.1 fps | 81.44 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 59.2 fps | 80.22 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Street Fighter4
Street Fighter 4 comes with an extra benchmark version which makes testing you system childrens play. At low resolutions the system requirements are pretty low and we can see CPU-scaling in the results. At high resolution the graphic card becomes more important and the CPUs clock speed has less influence on the fps.
800 x 600, low details
| Street Fighter 4 (800 x 600 low details) | Percent | |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 486.46 fps | 128.38 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 460.91 fps | 121.64 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 444.66 fps | 117.35 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 441.01 fps | 116.39 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 432.45 fps | 114.13 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 425.52 fps | 112.30 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 397.63 fps | 104.94 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 385.73 fps | 101.80 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 378.91 fps | 100.00 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 345.83 fps | 91.27 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 230.69 fps | 60.88 % |
| more is better | ||
1920 x 1080, high details, 8x AA, 16x AF
| Street Fighter 4 (1920 x 1080 high details, 8x AA, 16x AF) | Percent | |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 98.06 fps | 122.51 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 87.18 fps | 108.92 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 87.10 fps | 108.82 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 85.58 fps | 106.92 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 82.51 fps | 103.08 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 80.46 fps | 100.52 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 80.27 fps | 100.29 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 80.17 fps | 100.16 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 80.12 fps | 100.10 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 80.04 fps | 100.00 % |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 61.23 fps | 76.50 % |
| more is better | ||
Diesen Artikel im Forum diskutieren. [pagebreak]
Leistungsaufnahme
Hereby we take the power consumption under load as well as idle. To generate a load situation we use SiSoft Sandra's Burn-In Module and measure the whole systems power consumption. The values we take when the System just booted into Windows and the load drops.
| Idle | Performance | Percent |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 81 Watt | 62.31 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 85 Watt | 65.38 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 86 Watt | 66.15 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 91 Watt | 70.00 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 106 Watt | 81.54 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 126 Watt | 96.92 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 130 Watt | 100.00 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 132 Watt | 101.53 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 134 Watt | 103.08 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 136 Watt | 104.62 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 140 Watt | 107.69 % |
| Load | Performance | Percent |
| Intel Core i5 750 2.66 GHz DDR3-1333 | 150 Watt | 74.63 % |
| Intel Core i7 870 2.93 GHz DDR3-1333 | 155 Watt | 77.11 % |
| AMD Phenom II X4 955 3.2 GHz DDR3-1333 | 179 Watt | 89.05 % |
| Intel Core i7 875 K 2.93 GHz DDR3-1600 | 196 Watt | 97.51 % |
| AMD Phenom II X6 1090T 3.2 GHz DDR3-1333 | 198 Watt | 98.51 % |
| Intel Core i7 920 2.66 GHZ DDR3-1600 | 201 Watt | 100.00 % |
| Intel Core i7 940 2.93 GHz DDR3-1600 | 206 Watt | 102.49 % |
| Intel Core i7 950 3.06 GHz DDR3-1600 | 211 Watt | 104.98 % |
| Intel Core i7 965 XE 3.2 GHz DDR3-1600 | 216 Watt | 107.46 % |
| Intel Core i7 975 XE 3.33 GHZ DDR3-1600 | 220 Watt | 109.45 % |
| Intel Core i7 980 X 3.33 GHZ DDR3-1600 | 248 Watt | 123.38 % |
Overclocking
Using a very powerful Noctua NH-D14 aircooler we were able to reach 4.214 GHz at 1.44 Volt with the sample Intel provided us with. At this clock speed it's been still possible to run Futuremark Vantage stable. Therefore this is not a "suicidal-CPU-z"-Screenshot which would've provided you with the highest clockspeed possible before the system goes down with a bluescreen.
If we take a closer look at the 3DMark Vantage results we see that 13'787 point is 531 points more or in other words 4 percent. Comparing the CPU score values shows that 24'488 point is 4'567 point more than with the standard clock speed. This is equal to an increase of 22.9 percent.
Diesen Artikel im Forum diskutieren. [pagebreak]
Conclusion
With the Core i7 875K Intel makes the LGA 1156 platform even more interesting for overclockers and PC-Enthusiasts. Combined with a Triple-Channel memory-kit this CPU performs very well. The strength definitely are single-threaded applicaitons which is logical because of the Turbo-mode that boots this thing all the way up to 3'600 MHz. Therefore also working with a system based on a Core i7 875K is a pleasure. Furthermore this CPU is very energy efficient when in idle. Under load things are a bit different. In this case it burns almost as much energy as an X58 platform carrying a Core i7 920.
Thanks to the open multiplyer overclocking this CPU really is fun. Under these circumstances it really is possible to get a maximum of performance out of your system because you can now adjust CPU frequencies perfectly to BCLK and memory clock. The Core i7 CPUs out of the 800-series are also know for being exceptionally good to do memory overclocking.
Using a Noctua NH-D14 CPU cooler we were able to squeeze a bit more than 4'200 MHz out of our samples. This was also about what we expected the CPU would be capable of. At this point we have to add that the overclocking results can vary easily by 200 MHz when you do different trys with another CPU from the exact same series.
Another good fact about all the LGA 1156 CPUs is that a platform based on them is about a third cheaper in price than the LGA 1366 but still performs very well. This is because the motherboards cost less and you'll be able to buy dual-channel memory and you're not bound to more expensive triple-channel kits.
If you're looking for a LGA 1156 compatible CPU which you use mainly for gaming and overclocking then you'll be very well off buying a Core i7 875K CPU. But be aware the K-series really only makes sense if you do overclock your system otherwise there is really no difference at all if you buy a Core i7 870.
Intels Core i7 875 K CPU can be bought at Digitec to a price of CHF 389.- (est. EUR 278.-).
Author: Marc Büchel, m.buechel@ocaholic.ch
Diesen Artikel im Forum diskutieren.