Since the open beta in August Massive has been working hard on improving the performance of the DX10 code path and it shows. DX9 still runs a little faster than DX10 though. We should mention that this game is extremely CPU-bound, even with a Core 2 Extreme X6800, and as such the SLI setups don’t scale as well as they did in previous games earlier in this article.
You can also see that while AMD’s DX9 performance is competitive to NVIDIA, DX10 performance is nowhere close to being optimal. Under DX9, the GeForce 8800 GTS 640MB outruns the 2900 XT by 10% at 1600x1200. CrossFire doesn’t work in this game either.
The GeForce 8800 GTS 320MB SLI config performs similarly to what we saw with CoH.