18th March 2015
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5 AMD R9 280X 3GB Graphics Cards in one Mac Pro 5,1: OpenCL monster utilising CUBIX PCI-e Xpander
What’s better than one AMD R9 280X GPU in a Mac Pro? 2 is better, twice as fast if your using OpenCL applications. What’s better than 2 R9 280Xs in one Mac Pro?…
How about 5, yes 5, a total of 15GB VRAM. With the help of the CUBIX PCI-e Xpander Elite housing 4 AMD R9 280X graphics cards hooked up to a Mac Pro with an internal R9, we created a monster.
One R9 280X will hit around 2300 on the LuxMark Sala OpenCL benchmark test. With 5 we managed to hit a huge 11,309. Some may nay-say, we say, check out the video below.
https://www.youtube.com/watch?v=k1HYKCSuQG0
As a bonus here’s a video of a single R9 280X in LuxMark, same test.
https://www.youtube.com/watch?v=RVItgnMyPcQ
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What version OS was this on?
This is a question rather than a comment:
What would be the best way to expand GPU and Cuda cards to run on an express 34 card MacBook Pro (last 17 inch model)?
Thanks, Matt.
Hi Matt,
That’s tricky because there are no PCI-e slots in the MacBook Pro. This may be possible with some hacking, but I wouldn’t recommend it.
Hope that helps,
Tom