Revision as of 22:05, 7 May 2019

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General Info

Microarchitecture

Xeon Gold 6226 is a 64-bit dodeca-core x86 high performance server microprocessor introduced by Intel in early 2019. The Gold 6226 is based on the Cascade Lake microarchitecture and is manufactured on a 14 nm process. This chip supports 4-way multiprocessing, sports 2 AVX-512 FMA units as well as three Ultra Path Interconnect links. This microprocessor supports up 1 TiB of hexa-channel DDR4-2933 memory, operates at 2.7 GHz with a TDP of 125 W and features a turbo boost frequency of up to 3.7 GHz.

Cache

Main article: Skylake § Cache

The Xeon Gold 6226 features a larger non-default 19.25 MiB of L3, a size that would normally be found on a 14-core part.

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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$ 768 KiB 786,432 B 0.75 MiB L1I$ 384 KiB 393,216 B 0.375 MiB 12x32 KiB 8-way set associative   L1D$ 384 KiB 393,216 B 0.375 MiB 12x32 KiB 8-way set associative write-back L2$ 12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB     12x1 MiB 16-way set associative write-back L3$ 19.25 MiB 19,712 KiB 20,185,088 B 0.0188 GiB     14x1.375 MiB 11-way set associative write-back

Memory controller

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	Integrated Memory Controller
	Max Type DDR4-2933 Supports ECC Yes Max Mem 1 TiB Controllers 2 Channels 6 Max Bandwidth 131.13 GiB/s 134,277.12 MiB/s 140.8 GB/s 140,799.765 MB/s 0.128 TiB/s 0.141 TB/s Bandwidth Single 21.86 GiB/s Double 43.71 GiB/s Quad 87.42 GiB/s Hexa 131.13 GiB/s

Expansions

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	Expansion Options
PCIe Revision: 3.0 Max Lanes: 48 Configuration: 1x16, x8, x4

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 AVX-512 Advanced Vector 512-bit AVX512F AVX-512 Foundation AVX512CD AVX-512 Conflict Detection AVX512BW AVX-512 Byte and Word AVX512DQ AVX-512 Doubleword and Quadword Instructions AVX512VL AVX-512 Vector Length AVX512_VNNI AVX-512 Vector Neural Network Instructions 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 TBT 2.0 Turbo Boost Technology 2.0 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 VMD Volume Management Device NM Node Manager KPT Key Protection Technology PTT Platform Trust Technology Run Sure Run Sure Technology (RAS Capability) MBE Ctrl Mode-Based Execute Control DL Boost Deep Learning Boost