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General Info

Microarchitecture

Xeon Gold 6238 is a 64-bit 22-core x86 high performance server microprocessor introduced by Intel in early 2019. The Gold 6238 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 2.1 GHz with a TDP of 140 W and features a turbo boost frequency of up to 3.7 GHz.

Cache

Main article: Cascade Lake § 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$ 1.375 MiB 1,408 KiB 1,441,792 B L1I$ 704 KiB 720,896 B 0.688 MiB 22x32 KiB 8-way set associative   L1D$ 704 KiB 720,896 B 0.688 MiB 22x32 KiB 8-way set associative write-back L2$ 22 MiB 22,528 KiB 23,068,672 B 0.0215 GiB     22x1 MiB 16-way set associative write-back L3$ 30.25 MiB 30,976 KiB 31,719,424 B 0.0295 GiB     22x1.375 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