Template:mpu Xeon E3-1280 v5 is an entry-level server and workstation 64-bit quad-core x86 microprocessor introduced by Intel in October 2015. This Skylake-based chip operates at 3.7 GHz with turbo boost of 4 GHz. The E3-1280 v5 has a TDP of 80 Watts and supports up to 64 GiB of dual-channel DDR4-2133 memory. This MPU has no integrated graphics processor.

Cache

Main article: Skylake § Cache

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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$ 256 KiB 262,144 B 0.25 MiB L1I$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative   L1D$ 128 KiB 131,072 B 0.125 MiB 4x32 KiB 8-way set associative write-back L2$ 1 MiB 1,024 KiB 1,048,576 B 9.765625e-4 GiB     4x256 KiB 4-way set associative write-back L3$ 8 MiB 8,192 KiB 8,388,608 B 0.00781 GiB     4x2 MiB 16-way set associative write-back

Memory controller

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	Integrated Memory Controller
	Max Type DDR3L-1600, DDR4-2133 Supports ECC Yes Max Mem 64 GiB Controllers 1 Channels 2 Max Bandwidth 35.76 GiB/s 36,618.24 MiB/s 38.397 GB/s 38,397.008 MB/s 0.0349 TiB/s 0.0384 TB/s Bandwidth Single 17.88 GiB/s Double 35.76 GiB/s

Expansions

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	Expansion Options
	PCIe Revision 3.0 Max Lanes 16 Configs 1x16, 2x8, 1x8+2x4

Graphics

This chip has no integrated graphics processing unit.

Features

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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 AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion 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 EIST Enhanced SpeedStep Technology SST Speed Shift Technology TXT Trusted Execution Technology (SMX) vPro Intel vPro VT-x VT-x (Virtualization) VT-d VT-d (I/O MMU virtualization) EPT Extended Page Tables (SLAT) TSX Transactional Synchronization Extensions MPX Memory Protection Extensions SGX Software Guard Extensions Secure Key Secure Key Technology SMEP OS Guard Technology