najskor to nestiha grafika. tu som si precital nejake info, tak ci to nahodou nie je aj tvoj problem:

In real-world game tests we measured 65fps (frames per second) in Far Cry and Doom3, while Unreal Tournament 2004 ticked away at 135fps. Turning on 4x anti-aliasing (AA) to smooth out edges saw performance drop to 43fps in Far Cry, 39fps in Doom3 and 117fps in Unreal Tournament 2004 - still playable, but only just.

By increasing the resolution to 1,280x1,024, frame rates decreased to 54fps in Far Cry, 49fps in Doom3 and 118fps in Unreal Tournament 2004. Turning on 4xAA at this resolution saw frame rates in all games other than Unreal Tournament 2004 drop below 30fps, making gaming an uncomfortable experience.