890FX now out 42 lanes of PCIe 2.0 goodness, updated.

Accelerated Computing CUDA CUDA Programming and Performance
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As a follow up to their 6 core processors, AMD has updated the NorthBridge chipset. The new 890FX has come out. It has 42 lanes of PCIe, so you can have 2 slots running at x16, and still have a few left over. This should open up a whole new set of motherboards for anyone looking to put 2 CUDA cards at full PCIe bandwidth in one computer. And there’s even enough PCIe room left to have another card at x4, or hypothetically at x8. I suppose this would be important for the gaming community for people who want to have Dual CrossFire setups with a nVdia card on the side to do PhysX. For my applications, it would allow 2 powerful CUDA cards and a third smaller one for testing and/or graphics.

Also note that this is the same number of PCIe lanes as the 790FX had, but in an updated package with SATA 3.0 (6 GB/s) and USB3.

If anyone has thoughts or comments on the 890FX chipset and motherboards based on it, feel free to post here.

Regards,
Martin

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Nothing important has changed between the 790FX and 890FX. From a multi-gpu point of view, the same limitations will apply. A single Tylersberg is still probably a better bet for ultimate dual GPU performance.

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Need to run a bandwidth test on it.