F.E.A.R. demands that the graphics subsystem be capable of fast processing of pixel shaders this game abounds in. The PowerColor X1800 GTO has a lower pure speed than the GeForce 7600 GT, probably because of the higher core clock rate of the latter card. The difference in both minimum and average performance is 10%. Both these cards provide a comfortable frame rate in 1280x1024, yet you may want to limit yourself to 1024x768 to have a higher minimum speed.
The cards change places in the “eye candy” mode, but their minimum performance is only 25-26fps in 1024x768. It means you can play the game, but may come across such scenes where the performance goes down below comfortable level. This is why we don’t recommend turning on FSAA on these cards in F.E.A.R. if you use the highest graphics quality settings.