Fallout 3 is based on the same engine used by The Elder Scrolls IV: Oblivion, and it is a DirectX 9.0c (Shader 3.0) game. We configured the game with “ultra” image quality settings, maxing out all image quality settings, at three 16:10 widescreen resolutions, 1680x1050, 1920x1200, and 2560x1600. To measure performance, we used the FRAPS utility running an outdoor scene at God mode, running through enemy fire, triggering post processing effects, and ending with a big explosion in front of Dupont Circle.

Fallout 3 - 1680x1050	FPS	Difference
GeForce GTX 260/216	77.31	1.15%
Radeon HD 5770	76.43
Radeon HD 4870	75.32	1.47%
GeForce GTS 250	74.33	2.83%
Radeon HD 5750	71.28	7.23%
Radeon HD 4850	69.36	10.19%

Fallout 3 - 1920x1200	FPS	Difference
GeForce GTX 260/216	77.30	8.95%
Radeon HD 4870	73.45	3.52%
Radeon HD 5770	70.95
GeForce GTS 250	68.75	3.20%
Radeon HD 5750	66.12	7.30%
Radeon HD 4850	59.56	19.12%

Fallout 3 - 2560x1600	FPS	Difference
GeForce GTX 260/216	61.49	14.06%
Radeon HD 5770	53.91
Radeon HD 5750	46.83	15.12%
GeForce GTS 250	46.09	16.97%
Radeon HD 4870	44.32	21.64%
Radeon HD 4850	33.25	62.14%