Futuremark 3DMark Vantage
We minimize the CPU’s influence by using the Extreme profile (1920x1200, 4x FSAA and anisotropic filtering).
Unlike 3DMark06, 3DMark Vantage uses all the resources a modern graphics card can offer including memory. The Radeon HD 4870 X2 has twice as much memory as the Radeon HD 4870 CrossFire and the resulting gap between them amounts to almost 900 points. The GeForce GTX 280 is far behind the leader, indicating the main flaw in the design of Nvidia’s new GPU which has high texture-mapping performance but very modest computing capabilities.
Notwithstanding the disabled Sideport, the Radeon HD 4870 X2 is 20% more efficient than the ordinary CrossFire configuration built out of two Radeon HD 4870 cards. It must be because of the larger amount of graphics memory because the Extreme profile uses 1920x1200 resolution with 4x MSAA. The advantage is smaller in the second test, only 12%, yet it is still a triumph for ATI.