ATi Radeon HD 4870 X2 Review @ Rage3D
 

The HD 4870 X2 hits our bench with a vengeance, literally sending other components running for the hills. With the rebuild complete, its time to see what happens when the a pair of 4870 GPUs get up close and personal with each other.

http://www.rage3d.com/reviews/video/atihd4870x2/