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Xeon D-2191
General Info
Designer	Intel
Manufacturer	Intel
Model Number	D-2191
Market	Server, Embedded
Introduction	February 7, 2018 (announced) February 7, 2018 (launched)
Release Price	$2406
Shop	Amazon
General Specs
Family	Xeon D
Series	D-2000
Locked	Yes
Frequency	1,600 MHz
Turbo Frequency	3,000 MHz (1 core)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Clock multiplier	16
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Skylake (server)
Core Name	Skylake-DE
Core Stepping	M1
Process	14 nm
Technology	CMOS
MCP	Yes (2 dies)
Word Size	64 bit
Cores	18
Threads	36
Max Memory	512 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
TDP	86 W
Packaging
Package FCBGA-2518 (BGA) Dimension 45 mm x 52.5 mm Contacts 2518

Xeon D-2191 is a 64-bit 18-core high-performance x86 server microprocessor introduced by Intel in early 2018 for the dense server and edge computing market segment. Fabricated on Intel's 14 nm process based on the Skylake microarchitecture, this model operates at 1.6 GHz with a Turbo Boost of up to 3.0 GHz and a TDP of 86 W. The D-2191 supports up to 512 GiB of quad-chanel DDR4-2400 ECC memory.

Preliminary Data! Information presented in this article deal with a microprocessor or chip that was recently announced or leaked, thus missing information regarding its features and exact specification. Information may be incomplete and can change by final release.

Cache

Main article: Skylake § 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$ 1.125 MiB 1,152 KiB 1,179,648 B L1I$ 576 KiB 589,824 B 0.563 MiB 18x32 KiB 8-way set associative   L1D$ 576 KiB 589,824 B 0.563 MiB 18x32 KiB 8-way set associative write-back L2$ 18 MiB 18,432 KiB 18,874,368 B 0.0176 GiB     18x1 MiB 16-way set associative write-back L3$ 24.75 MiB 25,344 KiB 25,952,256 B 0.0242 GiB     18x1.375 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 512 GiB Controllers 2 Channels 4 Max Bandwidth 71.53 GiB/s 73,246.72 MiB/s 76.805 GB/s 76,804.753 MB/s 0.0699 TiB/s 0.0768 TB/s Bandwidth Single 17.88 GiB/s Double 35.76 GiB/s Quad 71.53 GiB/s Physical Address (PAE) 46 bit