Revision as of 19:55, 11 July 2017

Template:mpu Xeon Gold 5122 is a 64-bit quad-core x86 multi-socket high performance server microprocessor introduced by Intel in mid-2017. This chip supports up to 4-way multiprocessing. The Gold 5122, which is based on the server configuration of the Skylake microarchitecture and is manufactured on a 14 nm+ process, sports 1 AVX-512 FMA unit as well as three Ultra Path Interconnect links. This microprocessor, which operates at 3.6 GHz with a TDP of 105 W and a turbo boost frequency of up to 3.7 GHz, supports up 768 GiB of hexa-channel DDR4-2400 ECC memory.

Cache

Main article: Skylake § Cache

The Xeon Gold 5122 features a considerably larger non-default 16.5 MiB of L3, a size that would normally be found on a 12-core part.

[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$ 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$ 4 MiB 4,096 KiB 4,194,304 B 0.00391 GiB     4x1 MiB 16-way set associative write-back L3$ 16.5 MiB 16,896 KiB 17,301,504 B 0.0161 GiB     12x1.375 MiB 11-way set associative write-back

Memory controller

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-2400 Supports ECC Yes Max Mem 768 GiB Controllers 2 Channels 6 Max Bandwidth 107.3 GiB/s 109,875.2 MiB/s 115.212 GB/s 115,212.498 MB/s 0.105 TiB/s 0.115 TB/s Bandwidth Single 17.88 GiB/s Double 35.76 GiB/s Quad 71.53 GiB/s Hexa 107.3 GiB/s

Expansions

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	Expansion Options
	PCIe Revision 3.0 Max Lanes 48 Configs x16, x8, x4