Performance in RPG
This game is sensitive to the amount of graphics memory at the highest level of detail. This shows up in the bottom speed of the graphics cards. However, the Radeon HD 4850 CrossFire tandem has an acceptable speed at resolutions below 2560x1600 even though it is but 35-37% faster than the single such card.
512 megabytes of memory is not enough for 2560x1600. The GeForce GTX 280 remains the only graphics card to maintain a comfortable speed at that resolution. The GeForce GTX 260 has a surprisingly low bottom speed despite its 896 megabytes of onboard memory. It means the problem of inefficient memory management that used to plague the GeForce 8/9 series persists in the GeForce GTX 200 series, too.
The Elder Scrolls IV: Oblivion
The game loses much of its visual appeal without HDR. Although some gamers argue that point, we think TES IV looks best with enabled FP HDR and test it in this mode.
The Radeon HD 4850 CrossFire enjoys a lead over the GeForce GTX 280 starting with a resolution of 1600x1200. The gap amounts to 15% at 2560x1600. In open scenes the gap is smaller, amounting to 11-12% at 2560x1600. Contrary to the ATI solution, the GeForce 9800 GX2, a dual-chip solution too, does best at low resolutions and matches the performance of the GeForce GTX 260 at high resolutions.