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Core i5-520E has support for ECC memory and PCI express port bifurcation.Graphics and Integrated Memory Controller die size: 114 mm².All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Hyper-threading, Turbo Boost, Smart Cache.Mobile processors Westmere microarchitecture (1st generation) " Arrandale" ( MCP, 32 nm) Overclocking: Unlocked multiplier on K and KF models.All models support up to DDR5-4800 or DDR4-3200 memory, and 16 lanes of PCI Express 5.0 + 4 lanes of PCIe 4.0.
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