Quake 4 runs on the Doom 3 engine, so GeForce 7 series graphics cards have a certain advantage in this test. However, the PowerColor X1800 GTO delivers an acceptable average performance in resolutions up to 1280x1024 and – if you overclock it – in 1600x1200, too.
In the “eye candy” mode the two mainstream graphics cards allow playing in 1024x768. In higher resolutions their performance is below 50fps. You can get higher results by lowering the level of detail, but the game will lose some of its appeal as a consequence.