HotHardware has posted a preview on the NVIDIA GeForce 7900GTX 7900GT and 7600GT Series
Our personal favorite card in this showcase, the performance mainstream GeForce 7900GT, actually out-performed NVIDIA's own legacy high-end card, the GeForce 7800 GTX in every test. It also put up a good showing even versus ATI's Radeon X1900 XTX, which has an MSRP today of over $250 more, versus the GeForce 7900GT's expected $299 street price. And in game engines like Quake 4 and F.E.A.R., the 7900GT was actually nip-n-tuck with a Radeon X1900 XTX.NVIDIA GeForce 7900GTX 7900GT and 7600GT Series Launch
