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MacBook Air gets gaming credentials through home-built external GPU (video)
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.
NVIDIA SLI faces AMD CrossFire in a triple-GPU shootout
Place your bets, folks, because this one's gonna get ugly. On your left: a thunderous triad of AMD Radeon HD 6950 cards running in CrossFire. On your right: the terrorizing threat of triple NVIDIA GeForce GTX 570 in SLI. In the middle: a Tom's Hardware tester just trying to stay alive. The winner? Well, as usual in these benchmark articles that sort of depends on what you're doing, but in general it's the AMD solution and its CrossFire barrage that comes out on top in terms of performance, cost, and even efficiency. But, that's certainly far from the whole story. You'll want to click on through to read about every agonizing blow.
