Legit Reviews posted a review on the XFX 7950GX2 570M XXX Edition Video Card

Overall we've seen great performance out of the XFX 7950GX2. It does in fact provide the fastest performance of any single card on the market today. But, this begs the question....can this really be called a single card? After all it is two video cards literally screwed together, communicating via on-board PCI-E bridge, connected to the motherboard by a single PCI-E slot. I don't think there is a correct answer other than to say that the XFX GeForce 7950GX2 XXX is smoking fast.

XFX 7950GX2 570M XXX Edition Video Card Review