Newer Core and Xeon processors address 40 PCI Express 3.0 lanes directly through Sandy Bridge-E architecture (Xeon) and Ivy Bridge architecture (Core processors).
It supports Intel Sandy Bridge-E microprocessors, codenamed Romley-EN, marketed under the Xeon-E5 2400 series.
Sandy Bridge-E (eight-core Intel processors based on the Sandy Bridge microarchitecture)
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