A few days ago we we published a performance prediction/estimation on NVIDIAs upcoming GeForce GTX Titan graphics card. Back then we were calculating with GPU clock speeds of 1'050 MHz and 2'880 shader units activated. Now, that NVIDIA released the final specs we can estimate the performance with the real clock speeds which are 837 MHz base clock and 876 MHz boost clock. Futhermore NVIDIA revealed that they activated 2'688 shader units and not 2'880. So here is the updated version of our article.
Taking
a closer look at the GK110 graphics chip, you can see that basically it's an
upscaled version fo the GK104 architecture (actually it's the other way round). In order to estimate
the performance of a GK110 gaming graphics card we tested the GTX 660 Ti, the
GTX 670 and the GTX 680. Those cards don't only feature a different number of
SMX units they als have different memory interfaces. Based on the benchmark
results of these three cards we did our estimation.
We repeat, the results in
this article aren't the product's actual performance but a calculated estimation
- we hope - accurate.
|
GeForce GTX 690 |
GK110 |
GeForce TITAN |
GeForce GTX 680 |
Chip |
GK104 |
GK110 |
GK110 |
GK104 |
Process |
28 nm |
28 nm |
28 nm |
28 nm |
Transistors |
2x 3.54 billion |
7.1 billion |
7.1 billion |
3.54 Billion |
GPU
clock |
915 MHz (Boost 1'019 MHz) |
xxx MHz (Boost 1'050ish MHz) |
837 MHz (Boost 876 MHz) |
1'006 MHz (Boost 1'058 MHz) |
Memory |
(2x) 2'048 MB GDDR5 |
6'144 MB GDDR5 |
6'144 MB GDDR5 |
2'048 MB GDDR5 |
Memory
clock |
1'500 MHz (6'000 MHz) |
1'500 MHz (6'000 MHz) |
1'500 MHz (6'000 MHz) |
1'500 MHz (6'000 MHz) |
Memory
interface |
(2x) 256 Bit |
384 Bit |
384 Bit |
256 Bit |
Memory
bandwidth |
192'400 MB/s |
288'400 MB/s |
288'400 MB/s |
192'400 MB/s |
TMUs |
2x 128 |
224 |
224 |
128 |
Shader Cores |
2x 1'536 (8 SMX) |
2'880 (15 SMX) |
2'688 (14 SMX) |
1'536 (8 SMX) |
ROPs |
32 ROPs |
48 ROPs |
48 ROPs |
32 ROPs |
Shader
model |
SM 5 |
SM 5 |
SM 5 |
SM 5 |
Maximum board power |
300 Watt |
xxx Watt |
250 Watt |
195 Watt |
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