Why doesn't anyone ever listen to what Bungie is saying. This isn't the final graphics engine, and the single player is going to look way better because they took out some of the effects for multiplayer. Epics graphics really aren't that great. They were too good for multiplayer and limited it to 8 people. Don't judge graphics until the game launches.
They are also adding H.264 and M-PEG4 video format compatibility! I also believe PlaysForSure WMV, but the others are much bigger. Also the pictures of 300 are from the trailer that's on XBL Marketplace.
For etmaul, the 7900GT is an excellent card, there's one in the PC I'm running right now. CS: Source 1280x1024 4x AA 2x aniso at 90+ fps. Athlon X2 64 3800+, 1 GB RAM
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