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? It gives a more realistic experience to the user.

We ran this program at three 16:10 widescreen resolutions, 1680x1050, 1920x1200, and 2560x1600, maxing out all image quality controls (i.e., everything was put on the 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 benchmarks. The game was updated 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 - Maximum	FPS	Difference
GeForce GTX 260/216	86.44	8.24%
Radeon HD 4870	83.80	4.93%
GeForce GTS 250	82.34	3.11%
Radeon HD 5770	79.86
Radeon HD 5750	74.08	7.80%
Radeon HD 4850	69.54	14.84%

Call of Duty 4 - 1920x1200 - Maximum	FPS	Difference
GeForce GTX 260/216	83.50	19.05%
GeForce GTS 250	75.42	7.53%
Radeon HD 4870	73.60	4.93%
Radeon HD 5770	70.14
Radeon HD 5750	62.40	12.40%
Radeon HD 4850	57.18	22.67%

Call of Duty 4 - 2560x1600 - Maximum	FPS	Difference
GeForce GTX 260/216	64.36	39.67%
GeForce GTS 250	49.60	7.64%
Radeon HD 4870	47.40	2.86%
Radeon HD 5770	46.08
Radeon HD 5750	40.82	12.89%
Radeon HD 4850	36.26	27.08%