3DMark06 measures Shader 3.0 (i.e., DirectX 9.0c) performance. We run this software under three 16:10 widescreen resolutions, 1680x1050, 1920x1200, and 2560x1600, first with no image quality enhancements enabled – results we call “low” on the charts and tables below –, then setting 4x anti-aliasing and 16x anisotropic filtering. See the results below.

3DMark06 Professional 1.1.0 - 1680x1050 - Low	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	16260	9.10%
GeForce 9800 GX2	15623	4.82%
GeForce GTX 280	14904
GeForce 9800 GTX	12759	16.81%
Radeon HD 3870	10694	39.37%

3DMark06 Professional 1.1.0 - 1920x1200 - Low	Score	Difference
GeForce 9800 GX2	15547	9.37%
Sapphire Atomic Radeon HD 3870 X2	15489	8.96%
GeForce GTX 280	14215
GeForce 9800 GTX	11631	22.22%
Radeon HD 3870	9454	50.36%

3DMark06 Professional 1.1.0 - 2560x1600 - Low	Score	Difference
GeForce 9800 GX2	13015	10.62%
Sapphire Atomic Radeon HD 3870 X2	12315	4.67%
GeForce GTX 280	11766
GeForce 9800 GTX	8743	34.58%
Radeon HD 3870	6823	72.45%

3DMark06 Professional 1.1.0 - 1680x1050 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	16260	33.75%
GeForce 9800 GX2	13900	14.34%
GeForce GTX 280	12157
GeForce 9800 GTX	8981	35.36%
Radeon HD 3870	6915	75.81%

3DMark06 Professional 1.1.0 - 1920x1200 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	15489	40.92%
GeForce 9800 GX2	12213	11.12%
GeForce GTX 280	10991
GeForce 9800 GTX	7811	40.71%
Radeon HD 3870	6114	79.77%

3DMark06 Professional 1.1.0 - 2560x1600 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	12315	41.49%
GeForce 9800 GX2	9829	12.93%
GeForce GTX 280	8704
GeForce 9800 GTX	5774	50.74%
Radeon HD 3870	4319	101.53%