GameSpot have a preview on upcoming FPS Crysis. The preivew focuses on the technology used in the game, and offers an insight into the hardware we'll all need to run this beast. Of note is the fact Crysis will definately run (and run well) using DX 9.

Since DirectX 10 cards didn't exist in May, the Crysis demo at the Electronic Entertainment Expo was actually running on DirectX 9 video cards, which is a good indication of what sorts of visuals you'll get with current hardware. "The E3 demo was all about DX 9 shader model 2.0--there was no more technology than this," Yerli said. He also addressed some of the controversy around the E3 demo. While visually amazing, the frame rate struggled quite a bit throughout the demo. However, he noted that Crysis was running on dual graphics-processor-unit systems, while most other PC games at the show were running on quad GPU systems. Still, we can expect performance on DirectX 9 cards to be smoother once the game is finished and optimized.