We included the best MacBook Pro with the GeForce GT 650M discrete GPU to illustrate that it isn't up to the job except for very limited adjustments using DaVinci Resolve. Now AMD GPUs are supported but, as you can see, the best models compatible with OS X can't compete with the best NVIDIA GPUs. In our test last year using DaVinci Resolve 7, only CUDA capable GPUs (NVIDIA) could be used. Though all GPUs included in the test exceeded the 24 FPS target rate, adding a fourth node likely would have taken half of them 'under water.' Some of the GPUs started off strong but faded significantly when adjustment or effect nodes are added. The GTX 680 and Radeon HD 6870 were unflashed 'Windows only' GPUs. **Both GeForce GTX 580s, the GeForce GTX 570, and Quadro 6000 were loaned to us by MacVidCards. (Follow-up testing with 10.8.2 showed no signficant change.) Both Macs were running OS X Mountain Lion 10.8.1. The GeForce GT 650M is built into the 'mid 2012' Retina MacBook Pro 2.7GHz Quad-Core i7. Ten PCIe GPUs are installed in a 'mid 2010' Mac Pro 3.33GHz Hex-Core. GTX285 = NVIDIA GeForce GTX 285 GPU (2 power feeds, 1G VRAM) R5770 = AMD Radeon HD 5770 (1 power feed, 1G VRAM)

GT650M = NVIDIA GeForce GT 650M GPU (built-in Retina MacBook Pro), 1G VRAM R6870 = AMD Radeon HD 6870 (2 power feeds, 1G VRAM) Q4000 = NVIDIA Quadro 4000 GPU (1 power feed, 2G VRAM) R5870 = AMD Radeon HD 5870 (2 power feeds, 1G VRAM) Q6000 = NVIDIA Quadro 6000 GPU (1 eight pin or 2 six pin power feeds, 4G VRAM) ** GTX 680 = NVIDIA eVGA GeForce GTX 680 GPU (2 power feeds, 2G VRAM) GTX 570 = NVIDIA GeForce GTX 570 GPU (2 power feeds, 2.5G VRAM) ** GTX 580e = NVIDIA eVGA GeForce GTX 580 GPU (2 power feeds, 3G VRAM) ** GTX 580+ = NVIDIA 'Classified' (overclocked) GTX 580 GPU (3 power feeds, 3G VRAM) **

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