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The first—and least powerful—Xeon to support VT-d was the E5502 launched Q1'09 with two cores at 1.86 GHz on a 45 nm process. [2] Many or most Xeons subsequent to this support VT-d. See Advanced Search: feature=VT-d and segment=server for the full list.
The IOMMU handles this re-mapping, allowing the native device drivers to be used in a guest operating system. In some architectures IOMMU also performs hardware interrupt re-mapping, in a manner similar to standard memory address re-mapping. Peripheral memory paging can be supported by an IOMMU.
SKUs below 45xx as well as R-series and K-series SKUs do not support Trusted Execution Technology or vPro. [81] Intel VT-d, which is Intel's IOMMU, is supported on all i5 and i7 SKUs except the i5-4670K and i7-4770K. [81] [82] [83] Support for VT-d requires the chipset and motherboard to also support VT-d.
Single PCIe 2.0 x16, IOMMU. AM3+ socket support AMD 990X chipset RD980 2600 (HT 3.0) x8 + x8 x8 + x8 14 Two PCIe 2.0 x16, IOMMU. AM3+ socket support AMD 990FX chipset RD990 x16 + x16 or x8 quad x16 + x16 or x16 + x8 + x8 or x8 quad 19.6 Four PCIe 2.0 x16, IOMMU. AM3+ socket support Model Code name Released CPU support Fab (nm) HT (MHz) AMD-V
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All models support up to eight-processor configurations; All models support up to dual-channel Registered PC2-5300 DDR2 SDRAM; B1 and B2 steppings have a hardware TLB bug, affecting performance under certain conditions, see AMD errata #298