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	14.39%
GeForce 9800 GX2	15623	9.91%
GeForce GTX 280	14904	4.85%
XFX GeForce GTX 260 640M XXX (OC)	14878	4.66%
Sapphire Radeon HD 4870	14215
GeForce GTX 260	13701	3.75%
GeForce 9800 GTX	12759	11.41%
Sapphire Radeon HD 4850	11842	20.04%
Radeon HD 3870	10694	32.93%

3DMark06 Professional 1.1.0 - 1920x1200 - Low	Score	Difference
GeForce 9800 GX2	15547	19.44%
Sapphire Atomic Radeon HD 3870 X2	15489	18.99%
GeForce GTX 280	14215	9.20%
XFX GeForce GTX 260 640M XXX (OC)	13730	5.48%
Sapphire Radeon HD 4870	13017
GeForce GTX 260	12668	2.75%
GeForce 9800 GTX	11631	11.92%
Sapphire Radeon HD 4850	10691	21.76%
Radeon HD 3870	9454	37.69%

3DMark06 Professional 1.1.0 - 2560x1600 - Low	Score	Difference
GeForce 9800 GX2	13015	28.11%
Sapphire Atomic Radeon HD 3870 X2	12315	21.22%
GeForce GTX 280	11766	15.82%
XFX GeForce GTX 260 640M XXX (OC)	10977	8.05%
Sapphire Radeon HD 4870	10159
GeForce GTX 260	9894	2.68%
GeForce 9800 GTX	8743	16.20%
Sapphire Radeon HD 4850	8077	25.78%
Radeon HD 3870	6823	48.89%

3DMark06 Professional 1.1.0 - 1680x1050 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	16260	46.98%
GeForce 9800 GX2	13900	25.64%
GeForce GTX 280	12157	9.89%
XFX GeForce GTX 260 640M XXX (OC)	11703	5.79%
Sapphire Radeon HD 4870	11063
GeForce GTX 260	10617	4.20%
GeForce 9800 GTX	8981	23.18%
Sapphire Radeon HD 4850	8881	24.57%
Radeon HD 3870	6915	59.99%

3DMark06 Professional 1.1.0 - 1920x1200 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	15489	54.67%
GeForce 9800 GX2	12213	21.96%
GeForce GTX 280	10991	9.76%
XFX GeForce GTX 260 640M XXX (OC)	10512	4.97%
Sapphire Radeon HD 4870	10014
GeForce GTX 260	9450	5.97%
Sapphire Radeon HD 4850	7972	25.61%
GeForce 9800 GTX	7811	28.20%
Radeon HD 3870	6114	63.79%

3DMark06 Professional 1.1.0 - 2560x1600 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	12315	63.11%
GeForce 9800 GX2	9829	30.19%
GeForce GTX 280	8704	15.28%
XFX GeForce GTX 260 640M XXX (OC)	8165	8.15%
Sapphire Radeon HD 4870	7550
GeForce GTX 260	7285	3.64%
Sapphire Radeon HD 4850	5896	28.05%
GeForce 9800 GTX	5774	30.76%
Radeon HD 3870	4319	74.81%