Re: Upgrade from an 8800gt?
If money is no object and your PSU is up to the task, GTX 280 all the way. And you could keep your 8800 GT for PhysX. Just pop it into your board's 2nd PCI-E slot and follow instructions that have been linked to elsewhere in this forum. Your board is an Intel P35 chipset like mine, so that means the 8800 would run at PCI-E x4 speed, but that doesn't seem to have much impact on PhysX performance, at least in my limited testing using an 8800 GS as a dedicated PPU.