Back when I had Origin’s tri-Titan equipped Genesis in house, I received a few requests for benchmarks with PCIe 3 enabled. Because we tested the system with its default out of the box settings, the system was configured by default to only use PCIe 2 since NVIDIA does not officially support PCIe 3 on SNB-E based systems. As a result there was some interest in whether PCIe 3 would improve performance at all compared to PCIe 2, due to the high amount of PCIe bus traffic generated by three GTX Titan cards working together. IVB/Haswell is of course limited to 16 PCIe 3 lanes, whereas if PCIe 3 is enabled SNB-E systems have more than twice that with a combined total of 40 lanes...

Sandy Bridge E & X79 PCIe 3.0: It Works

At the launch of Intel's LGA-2011 based Sandy Bridge E CPU we finally had a platform capable of supporting PCI Express 3.0, but we lacked GPUs to test it...

14 by Anand Lal Shimpi on 12/22/2011

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