Half-Life 2: Episode Two
Like in many other games, the $299 cards are roughly equals, with a small advantage in favor of the GeForce GTX 260. Anyway, 45-50fps should be quite enough for comfortable play here.
S.T.A.L.K.E.R.: Shadow of Chernobyl
The game doesn’t support FSAA when you enable the dynamic lighting model, but loses much of its visual appeal with the static model. This is the reason why we benchmarked the cards in S.T.A.L.K.E.R. using anisotropic filtering only.
A product of Nvidia’s The Way It’s Meant to Be Played campaign, this game is fast on Nvidia’s hardware and very slow on ATI’s Radeons.
Here, the Force3D Radeon HD 4870 is just disappointing even in comparison with the rather low result the GeForce GTX 260 has at 2560x1600. It seems that you can’t play this game comfortably at 2560x1600 on a $299 graphics card.