if it is really about RM2053.26 for such a good card, still a acceptable price..

I'm currently benchmarking the Radeon HD 2900 XTX, though I'll revise the XT if anyone has any particular requests.

The quality settings for the games were as follows:

Call of Duty 2 - Anisotropic filtering, 4xAA (in game), V-Sync off, Shadows enabled, a high number of dynamic lights, soften all smoke edges and an insane amount of corpses.

Company of Heroes - High shader quality, High model quality, Anti-aliasing enabled (in game), Ultra texture quality, high quality shadows, high quality reflections, Post processing On, High building detail, High physics, high tree quality, High terrain detail, Ultra effects fidelity, Ultra effects density, Object scarring enabled and the model detail slider all the way to the right.

F.E.A.R. - 4x FSAA (in game), maximum light details, shadows enabled, maximum shadow details, soft shadows enabled, 16x anisotropic filtering, maximum texture resolution, maximum videos, maximum shader quality.

Half Life 2: Episode 1 - High model detail, high texture detail, high shader detail, reflect all water details, high shadow detail, 4x multi-sample AA (in-game), 16x anisotropic filtering, v-sync disabled, full high-dynamic range.

Pretty much as high as you can crank it.

Dun forget that R630 or RV630  has PCI-E 2 supported. nice feature..

2 bad mobo that able to support pci-ex 2.0 will appear in Q3,it just on high end intel X38 based mobo

Can the bandwidth from 2.5Gbps to 5Gbps be fully used? No, I don't think so. Even the current PCI-E 16X also not being fully used up.

More bandwidth per pin is always nice, and the latency is cut in half, so that's another big improvement especially for latency sensitive devices like sound cards (one of the complaints was that pci-e had higher latency than regular old pci). GPUs are being used for so many general purpose apps now, so that extra bandwidth and lower latency cannot hurt. And if you're running a low end gpu that uses main memory, that surely helps.

Oh, u mean the technology like HyperMemory and nVIDIA's TurboCache that implement on those lower end graphic card. Ya, I agree with u in this point. 
What I mean is current PCI-E can handle cards like Geforce 8800 good enough. 

Good enough for regular graphics apps on a single card? Yes. However it's not enough for multi-gfx card solutions as we can see. Even pci-e 2.0 is probably not enough to enable truly scalable multi-card solutions. Hopefully Geneseo/pci-e 3.0 will remedy this.

hmm.. could be due to unoptimized drivers... but quite surprised to see the benchmark score that low.. huge difference in some games

ATI is defnitely out of the race of DX 10 card at the moment.