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	9.29%
GeForce 9800 GX2	15623	5.01%
GeForce GTX 280	14904	0.17%
XFX GeForce GTX 260 640M XXX (OC)	14878
Sapphire Radeon HD 4870	14215	4.66%
GeForce GTX 260	13701	8.59%
GeForce 9800 GTX	12759	16.61%
Sapphire Radeon HD 4850	11842	25.64%
Radeon HD 3870	10694	39.12%

3DMark06 Professional 1.1.0 - 1920x1200 - Low	Score	Difference
GeForce 9800 GX2	15547	13.23%
Sapphire Atomic Radeon HD 3870 X2	15489	12.81%
GeForce GTX 280	14215	3.53%
XFX GeForce GTX 260 640M XXX (OC)	13730
Sapphire Radeon HD 4870	13017	5.48%
GeForce GTX 260	12668	8.38%
GeForce 9800 GTX	11631	18.05%
Sapphire Radeon HD 4850	10691	28.43%
Radeon HD 3870	9454	45.23%

3DMark06 Professional 1.1.0 - 2560x1600 - Low	Score	Difference
GeForce 9800 GX2	13015	18.57%
Sapphire Atomic Radeon HD 3870 X2	12315	12.19%
GeForce GTX 280	11766	7.19%
XFX GeForce GTX 260 640M XXX (OC)	10977
Sapphire Radeon HD 4870	10159	8.05%
GeForce GTX 260	9894	10.95%
GeForce 9800 GTX	8743	25.55%
Sapphire Radeon HD 4850	8077	35.90%
Radeon HD 3870	6823	60.88%

3DMark06 Professional 1.1.0 - 1680x1050 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	16260	38.94%
GeForce 9800 GX2	13900	18.77%
GeForce GTX 280	12157	3.88%
XFX GeForce GTX 260 640M XXX (OC)	11703
Sapphire Radeon HD 4870	11063	5.79%
GeForce GTX 260	10617	10.23%
GeForce 9800 GTX	8981	30.31%
Sapphire Radeon HD 4850	8881	31.78%
Radeon HD 3870	6915	69.24%

3DMark06 Professional 1.1.0 - 1920x1200 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	15489	47.35%
GeForce 9800 GX2	12213	16.18%
GeForce GTX 280	10991	4.56%
XFX GeForce GTX 260 640M XXX (OC)	10512
Sapphire Radeon HD 4870	10014	4.97%
GeForce GTX 260	9450	11.24%
Sapphire Radeon HD 4850	7972	31.86%
GeForce 9800 GTX	7811	34.58%
Radeon HD 3870	6114	71.93%

3DMark06 Professional 1.1.0 - 2560x1600 - High	Score	Difference
Sapphire Atomic Radeon HD 3870 X2	12315	50.83%
GeForce 9800 GX2	9829	20.38%
GeForce GTX 280	8704	6.60%
XFX GeForce GTX 260 640M XXX (OC)	8165
Sapphire Radeon HD 4870	7550	8.15%
GeForce GTX 260	7285	12.08%
Sapphire Radeon HD 4850	5896	38.48%
GeForce 9800 GTX	5774	41.41%
Radeon HD 3870	4319	89.05%