Call of Duty 4 is a DirectX 9 game implementing high-dynamic range (HDR) and its own physics engine, which is used to calculate how objects interact (for example, if you shoot what exactly will hapen to the object when the bullet hits it – Will it break? Will it move? Will the bullet bounce back?), giving a more realistic experience to the user.

We ran this game under three 16:10 widescreen resolutions, 1680x1050, 1920x1200 and 2560x1600, maxing out all image quality controls (i.e. everything was put on their maximum values on the Graphics and Texture menus). We used the game internal benchmarking feature, running a demo provided by nVidia called wetwork. We are putting this demo for downloading here if you want to run your own benchmarking. We updated the game to version 1.6. The results below are the average number of frames per second (FPS) achieved by each card.

Call of Duty 4 - 1680x1050	FPS	Difference
GeForce GTX 260/216	86.44	16.68%
GeForce GTS 250	82.34	11.15%
Radeon HD 4870	83.80	13.12%
Radeon HD 5770	79.86	7.80%
Radeon HD 5750	74.08
Radeon HD 4850	69.54	6.53%

Call of Duty 4 - 1920x1200	FPS	Difference
GeForce GTX 260/216	83.50	33.81%
GeForce GTS 250	75.42	20.87%
Radeon HD 4870	73.60	17.95%
Radeon HD 5770	70.14	12.40%
Radeon HD 5750	62.40
Radeon HD 4850	57.18	9.13%

Call of Duty 4 - 2560x1600	FPS	Difference
GeForce GTX 260/216	64.36	57.67%
GeForce GTS 250	49.60	21.51%
Radeon HD 4870	47.40	16.12%
Radeon HD 5770	46.08	12.89%
Radeon HD 5750	40.82
Radeon HD 4850	36.26	12.58%