For
the following tests we started with the memory set to 1066 MHz with 8-8-8-24
timings at 1.65 Volt. To determine wether the system was stable or not we were
using the CPU test of Futuremarks 3DMark 06. To enter the different setting we
use both the BIOS as well as TurboV EVO from ASUS.
Motherboard | CPUFreq | BusFreq | NBFreq | HTFreq | RamFreq |
ASUS Crosshair IV Extreme OC | 1'504 MHz | 376 MHz | 2'256 MHz | 376 MHz | 1002 MHz |
DFI LanParty DK 790FXB-M3H5 Bus OC | 1'380 MHz | 345 MHz | 2'070 MHz | 345 MHz | 690 MHz |
ASUS M4A78T-E Bus OC | 1'715 MHz | 343 MHz | 2'058 MHz | 343 MHz | 915 MHz |
ASUS M5A99X Evo OC | 1'340 MHz | 335 MHz | 1'340 MHz | 1'340 MHz | 670 MHz |
ASRock M3A790GXH/128M Bus OC | 1'320 MHz | 330 MHz | 1'980 MHz | 330 MHz | 880 MHz |
ECS A890GXM-A2 Bus OC | 2'480 MHz | 310 MHz | 1'860 MHz | 620 MHz | 826 MHz |
ASUS M4A78-HTPC (DDR2) Bus OC | 1'355 MHz | 271 MHz | 1'084 MHz | 271 MHz | 452 MHz |
ECS A890GXM-A2 Bus @ Stock | 1'600 MHz | 200 MHz | 1'400 MHz | 200 MHz | 533 MHz |
ASUS M4A78T-E Bus @ Stock | 1'000 MHz | 200 MHz | 1'200 MHz | 200 MHz | 533 MHz |
ASUS M4A78-HTPC (DDR2) Bus Stock | 1'000 MHz | 200 MHz | 800 MHz | 200 MHz | 333 MHz |
DFI LanParty DK 790FXB-M3H5 Bus Stock | 800 MHz | 200 MHz | 1'200 MHz | 200 MHz | 400 MHz |
ASUS M5A99X Evo Bus Stock | 800 MHz | 200 MHz | 800 MHz | 800 MHz | 400 MHz |
ASUS Crosshair IV Extreme Bus Stock | 800 MHz | 200 MHz | 1'200 MHz | 200 MHz | 533 MHz |
ASRock M3A790GXH/128M Bus Stock | 100 MHz | 200 MHz | 1'200 MHz | 200 MHz | 533 MHz |
Gigabyte MA790FXT-UD5P Bus OC | |||||
Gigabyte MA790FXT-UD5P Bus Stock | 1'000 MHz | 200 MHz | 1'600 MHz | ||
Higher is better |
Regarding the bus clock we were able to reach 335 MHz stable in 3DMark06 on our ASUS M5A99X Evo and with resonable voltages. 320 MHz where max bootable from the BIOS, the last 15 MHz were increased with TurboV EVO under windows.
For this test we kept
the previous settings:
In this test we also used TurboV EVO as well as the BIOS to do the overclocking.
CPU Overclocking | CPU Freq | Percent |
ASUS Crosshair IV Extreme | 4'362 MHz | 107.70 % |
DFI LanParty DK 790FXB-M3H5 | 4'350 MHz | 107.41 % |
ASUS M5A99X Evo | 4'306 MHz | 106.32 % |
ECS A890GXM-A2 | 4'275 MHz | 105.55 % |
ASRock M3A790GXH/128M | 4'100 MHz | 101.23 % |
ASUS M4A78T-E | 4'050 MHz | 100.00 % |
ASUS M4A78-HTPC (DDR2) | 4'050 MHz | 100.00 % |
Higher is better |
The highest frequency which we reached stably was 4'306 MHz which is close to the limit for our Phenom II x6 1090T BE on air. Therefore we needed to provide the CPU with 1.5 Volt. To obtain overclocking results which are as comparable as possible we set northbridge and the HT multiplyer to 10. The memory frequency we tried to keep as close to 800 MHz as possible.
Motherboard | 3DMark06 CPU | 3DMarkVantage CPU | SuperPi 1M | WPrime 32M | Average % | |
ASUS Crosshair IV Extreme OC | 7'580 | 21'556 | 16.256 sec | 6.005 sec | 132.1 % | |
ASUS M5A99X Evo OC | 7'529 | 21'421 | 16.209 sec | 6.085 sec | 131.32 % | |
DFI LanParty DK 790FXB-M3H5 OC | 7'454 | 21'407 | 16.224 sec | 6.271 sec | 129.94 % | |
ECS A890GXM-A2 OC | 7'475 | 21'075 | 16.380 sec | 6.287 sec | 129.13 % | |
ASUS M4A78T-E | 7'050 | 20'313 | 17.207 sec | 6.366 sec | 124.2 % | |
ASRock M3A790GXH/128M OC | 7'065 | 20'745 | 17.203 sec | 6.704 sec | 123.28 % | |
ASUS M4A78-HTPC (DDR2-800-CL4) OC | 7'026 | 20'130 | 17.285 sec | 6.784 sec | 121.68 % | |
ASUS M5A99X Evo Stock | 5'835 | 16'657 | 21.357 | 8.269 sec | 100.00 % | |
ASUS Crosshair IV Extreme Stock | 5'803 | 16'747 | 21.341 | 8.345 sec | 99.65 % | |
ECS A890GXM-A2 Stock | 5'647 | 16'286 | 21.653 sec | 8.143 sec | 98.68 % | |
ASUS M4A78T-E Stock | 5'746 | 16'543 | 21.481 sec | 8.502 sec | 98.62 % | |
ASUS M4A78-HTPC (DDR2-800-CL4) Stock | 5'663 | 16'226 | 21.606 sec | 8.237 sec | 98.43 % | |
ASRock M3A790GXH/128M Stock | 5'663 | 16'527 | 21.563 sec | 8.531 sec | 98.06 % | |
DFI LanParty DK 790FXB-M3H5 Stock | 5'693 | 16'390 | 21.590 sec | 8.656 sec | 97.6 % | |
more is better | less is better |
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