EVGA was kind enough to send us a card so that we could test SLI and take a look at overclocked performance of the GTX 280. Their card uses the stock HSF, but has fairly high clock speeds:
| Stock GTX 280 | EVGA GeForce GTX 280 FTW | % Increase | |
| GPU Clock | 602MHz | 670MHz | 11.3% |
| Shader Clock | 1296MHz | 1458MHz | 12.5% |
| Memory Clock | 1107MHz | 1215MHz | 9.8% |
We ran a few quick tests to look at overclocking performance and we saw about an 8% to 12% increase in a few games at high resolutions over the stock clocked card. Here is a quick look at a couple of these tests.
Crysis is one of many benchmarks where the GTX 280 falls behind the GeForce 9800 GX2, unfortunately even an overclocked GTX 280 will not dethrone the almighty GX2.
Oblivion on the other hand showcases a memory bandwidth limitation of the GX2 at ultra high resolutions, here we see an 11% performance advantage from the overclocked EVGA card. Given that the EVGA card has an average clock speed increase of 11.2%, this sort of a performance gain isn't bad at all. Even at 1920 x 1200 we see a 9% performance improvement from the overclocked card.
It seems as if the GTX 280 and GTX 260 can stand to benefit from overclocking very well.
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