Futuremark 3DMark Vantage
We minimize the CPU’s influence by using the Extreme profile (1920x1200, 4x FSAA and anisotropic filtering). We also publish the results of the individual tests across all display resolutions to provide a full picture.
When the test runs at 1920x1200 with 4x MSAA, the Sapphire HD 4850 X2 is slower than the Leadtek WinFast GTX 280 because the latter has higher memory bandwidth.
Oddly enough, the Sapphire HD 4850 X2 is far slower not only than the Leadtek WinFast GTX 280 but also than the Radeon HD 4870 X2, at least at low resolutions. This may be due to the low frequency of its graphics cores. Besides, the Leadtek card can utilize the GPU’s computing resources for physical model calculations.
The second test puts a heavy load on the graphics card’s texture processors and the Sapphire card is superior in it. This is no wonder as we know that the G200’s 80 texture-mapping units perform similarly to 40 ordinary texture processors in real-life applications whereas the two TMU arrays of the Sapphire HD 4850 X2 work in sync, delivering double performance. The end result is limited by the card’s memory bandwidth as is indicated by the relative results of the Sapphire and the Radeon HD 4870 X2.