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I was curious about how much a real-world difference it makes, putting a high performance graphics card in a 16 lane slot vs. a four lane slot, and how this information could inform the possibilities of using Thunderbolt for external graphics cards.
So I spent a couple of hours swapping graphics cards in a Mac Pro tower, running some benchmarks, and I wrote up what I found -
http://www.pixelworkshop.com/2012/05/02/slot-card-racing-mac-pro-gpu-speed-tests/
Interested to know what you all think.
Dave
Dave Bittner - Pixel Workshop Inc.
www.pixelworkshop.com
410.381.8555
Twitter @bittner
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