Template:mpu Xeon E7-4820 is a 64-bit octa-core x86 data center microprocessor that supports up to 4 sockets. This first generation Xeon E7 processor, Westmere-based, operates at a base frequency of 2 GHz with turob frequency of 2.266 GHz for 2 active cores. This chip has a TDP of 105 W, supporting up to 4 channels of DDR3 with support of up to 2 TB of memory.

Cache

Main article: Westmere § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 512 KiB 524,288 B 0.5 MiB L1I$ 256 KiB 262,144 B 0.25 MiB 8x32 KiB 4-way set associative write-back L1D$ 256 KiB 262,144 B 0.25 MiB 8x32 KiB 8-way set associative write-back L2$ 2 MiB 2,048 KiB 2,097,152 B 0.00195 GiB     8x256 KiB 8-way set associative write-back L3$ 18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB     8x2.25 MiB 16-way set associative write-back

Graphics

This SoC has no integrated graphics processing unit.

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR3-1066 Supports ECC Yes Max Mem 2 TiB Controllers 1 Channels 4 Max Bandwidth 31.77 GiB/s 32,532.48 MiB/s 34.113 GB/s 34,112.778 MB/s 0.031 TiB/s 0.0341 TB/s Bandwidth Single 7.942 GiB/s Double 15.88 GiB/s Triple 23.83 GiB/s Quad 31.77 GiB/s Physical Address (PAE) 44 bit

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 AES AES Encryption Instructions x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute HT Hyper-Threading TBT 1.0 Turbo Boost Technology 1.0 EIST Enhanced SpeedStep Technology TXT Trusted Execution Technology (SMX) VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT)