The MacBook Air's integrated graphics all but rule it out as a serious gaming machine. However, Larry Gadea at the Tech Inferno forums has found a way to make the Air a powerhouse through an ad hoc external GPU. His design mates a PCI Express video card to the Mac's Thunderbolt port through a combination of two adapters, a Boot Camp installation of Windows 7 and third-party software. The performance improvement is appropriately dramatic, leading to frame rates up to seven times faster than what Intel's HD 5000 can manage. Just don't expect to buy a pre-assembled version anytime soon -- the peripheral needs a desktop-class power supply just to run, and Intel won't issue the licenses needed to commercialize Thunderbolt GPUs. If you're absolutely determined to get a Crysis-worthy ultraportable, though, you'll find Gadea's instructions at the source link.
MacBook Air gets gaming credentials through home-built external GPU (video)
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