|Introduction||June 5, 2017 (announced)|
December 21, 2017 (launched)
|Turbo Frequency||4,300 MHz (1 core)|
|Bus type||DMI 3.0|
|Bus rate||4 × 8 GT/s|
|Core Name||Skylake W|
|Word Size||64 bit|
|Max CPUs||1 (Uniprocessor)|
|Max Memory||512 GiB|
|Dimension||52.5 mm x 45 mm|
W-2191B is a 64-bit 18-core x86 enterprise performance workstation microprocessor introduced by Intel in 2017. This processors, which is fabricated on an enhanced 14nm+ process based on the Skylake server microarchitecture, operates at 2.3 GHz with a TDP of ? W and a turbo boost frequency of up to 4.3 GHz. This chip supports up to 512 GiB of quad-channel DDR4-2666 ECC memory.
This specific model appears to be a special model for Apple for their iMac Pros.
|| 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.
- Main article: Skylake § Cache
[Edit/Modify Cache Info]
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
|18x32 KiB||8-way set associative|| |
|18x32 KiB||8-way set associative||write-back|
| || ||18x1 MiB||16-way set associative||write-back|
| || ||18x1.375 MiB||11-way set associative||write-back|
[Edit/Modify Memory Info]
Integrated Memory Controller
|Max Mem||512 GiB|
|Max Bandwidth||79.47 GiB/s|
Single 19.87 GiB/s
Double 39.74 GiB/s
Quad 79.47 GiB/s
|Physical Address (PAE)||46 bit|