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 game runs no faster on a graphics card with over 512MB of memory. Moreover, TES IV seems to be quite satisfied with 256MB even. The memory frequency is more important than its amount even in the open scenes of the game.