Performance in First-Person 3D Shooters
This game doesn’t support display resolutions of 16:10 format, so we use resolutions of 4:3 format instead.
Zotac’s factory overclocking has no effect in any of the tested resolutions, including 2560x1600. That’s not a surprise considering the modest system requirements of this game. The two versions of GeForce GTX 280 coincide up to a fraction of one frame-per-second.
BioShock doesn’t support FSAA when running in Windows Vista’s DirectX 10 environment. We benchmark graphics cards without FSAA in this game.
There is an effect from the factory overclocking of the GeForce GTX 280 in BioShock. It can be observed at resolutions up to 1600x1200. The performance growth is so high that the Zotac overtakes the Radeon HD 4870 X2. The latter wins the higher resolutions, though. Both cards have the same practical value at 1920x1200 but the Radeon HD 4870 X2 is unrivalled at 2560x1600. The Zotac card seems to encounter some fundamental limitations of the G200 architecture at the highest resolution because its average performance growth relative to the reference card is negligible, as opposed to the lower resolutions.