[H]ard|OCP has a couple of articles on the more mainstream graphics from ATi. First is a a PCIe roundup of different Radeon X600 cards. Apparently PCI-Express is not the miracle worker many people thought it would be when it comes to performance on video cards. The simple fact of the matter is that PCI-E will be something special when we have that will actually utilize the bus, but that will be some time to come. With these X600XT based video cards it is all about the performance of the VPU and the local video card memory bandwidth, not the bandwidth that PCI-Express offers. These gaming content shown on these cards is not even coming close to being able to saturate an AGP8X bus let alone a PCI-Express one. That article can be had here. ATi hasn't sat down to let nVidia get away with the GeForce 6600 series, and has recently lifted the NDA on the Radeon X700 line. One thing is for sure, the GeForce 6600GT and the Radeon X700XT are very competitive products when it comes to overall gaming performance. If we had to edge out a card that offers up the better value we would have to lean towards the GeForce 6600GT at this point in time. In our two days of X700XT experience we saw it get held out of the top spot in terms of both framerate and image quality by the GeForce 6600GT. Keep in mind that the GeForce 6600 series also packs the performance potential of Shader 3.0 once start using it. I doubt ATi will sit around and let nVidia walk away though. You can get that preview over here.