Feex·CPU
Intel · Xeon W · Server

Intel® Xeon™ W-2191B

The Intel Xeon W-2191B is a server processor released on December 21, 2017. It has 18 cores and 36 threads, a base clock of 2.30 GHz, a maximum boost of 4.30 GHz, 25 MB of L3 cache, a 140 W TDP and the FCLGA2066 socket.

Cores
18
Threads
36
Boost Clock
4.3 GHz
Base Clock
2.3 GHz
Socket
FCLGA2066
TDP
140 W
L3 Cache
24.8 MB
Multi-Core Performance
27,931
Core layout
PPPPPPPPPPPPPPPPPP
18 Performance 36 Threads
Notable capabilities:AVX-512

Best for

Server / professional infrastructure

Overview

The Intel Xeon W-2191B is a server processor with 18 cores and 36 threads. It launched in Dec 2017. Clocks run from 2.3 GHz base to 4.3 GHz boost. A 24.75-MB L3 cache backs the cores (2.4 MB per core). It supports DDR4 memory. It uses the FCLGA2066 socket. Rated TDP is 140 W. Notable platform capabilities: AVX-512.

Performance

Overall CPU Performance computed
8,319
33% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
27,931
23% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
2,478
45% of reference
Reference ceiling 5,500
Productivity Performance computed
21,624
14% of reference
Reference ceiling 160,000
Creator Performance computed
19,822
14% of reference
Reference ceiling 140,000
Engineering Performance computed
32,993
16% of reference
Reference ceiling 200,000
Gaming Performance computed
14,417
66% of reference
Reference ceiling 22,000
Performance per Core computed
1,552
7% of reference
Reference ceiling 21,053
Performance per Thread computed
776
7% of reference
Reference ceiling 10,527
Performance per Watt computed
200
10% of reference
Reference ceiling 2,000
Efficiency Index computed
703
18% of reference
Reference ceiling 4,000
Performance index computed
103
Intel Core i5-12400 = 100

The Intel Xeon W-2191B scores 2,478 in single-core performance and 27,931 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 8,319 for overall performance, 21,624 for productivity performance, 19,822 for creator performance, 32,993 for engineering performance and 14,417 for gaming performance. Its multi-core throughput works out to 1,552 per core, 776 per thread and 200 per watt. Its computed efficiency index is 703. Its performance index is 103, so its overall performance is 3% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

Integer Math Throughput
103,128
17% of reference
Reference ceiling 617,811
75% above the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
62,293
10% of reference
Reference ceiling 600,000
36% above the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
476,481
21% of reference
Reference ceiling 2,309,868
109% above the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
11,489
8% of reference
Reference ceiling 137,106
Equal to the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
1,578
13% of reference
Reference ceiling 12,291
45% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
30,475
18% of reference
Reference ceiling 172,975
96% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
106
10% of reference
Reference ceiling 1,067
58% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
54,886
21% of reference
Reference ceiling 260,323
142% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Xeon W-2191B scores 103,128 in integer math, 62,293 in floating-point math, 476,481 in compression, 11,489 in cryptography, 1,578 in physics simulation, 30,475 in vector SIMD, 106 in the prime sieve and 54,886 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 75% above in integer math, 36% above in floating-point math, 109% above in compression, equal in cryptography, 45% above in physics simulation, 96% above in vector SIMD, 58% above in the prime sieve and 142% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

Core Configuration

Cores
18
Threads
36
Performance Cores
18
Threads per Core
2
Hybrid Architecture
No
Base Clock
2.3 GHz
Boost Clock
4.3 GHz

The Intel Xeon W-2191B has 18 physical cores and runs 36 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 2.30 GHz and boosts up to 4.30 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Xeon W
Segment
Server
Generation
Not recorded
Architecture
Not recorded
Process Node
Not recorded
Lithography
Not recorded
Release Date
Dec 2017

The Intel Xeon W-2191B is a server processor and belongs to the Intel Xeon W family. It launched in Dec 2017.

Cache

L1 Cache (Total)
1.1 MB
L2 Cache (Total)
18 MB
L2 Cache (per Core)
1 MB
L3 Cache
24.8 MB
Cache per Core
2.4 MB
Total Cache
43.9 MB

The Intel Xeon W-2191B has 1.13 MB of L1 cache, 18 MB of L2 cache and 24.8 MB of L3 cache. That adds up to about 43.9 MB of cache, or 2.44 MB per core. Each core has 1 MB of private L2 cache.

Cache Hierarchy

L1L2L3
L1 1.1 MBL2 18 MBL3 24.8 MB

The Intel Xeon W-2191B has a 3-level cache hierarchy: L1 at 1.1 MB, L2 at 18 MB and L3 at 24.8 MB. L3 is the largest level and makes up about 56% of the cache listed here.

Memory Support

Max Memory
Not recorded
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
2,666

The Intel Xeon W-2191B supports DDR4 memory and runs memory at up to 2,666 MT/s. It does not support DDR5 and LPDDR memory.

Platform & Compatibility

Socket
FCLGA2066
PCIe Generation
Not recorded
PCIe Lanes
48

The Intel Xeon W-2191B uses the FCLGA2066 socket and provides up to 48 PCIe lanes.

Power & Thermals

TDP
140 W

The Intel Xeon W-2191B has a rated TDP of 140 W.

Platform Capabilities

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Instruction Sets

12 supported
Supported
AVX-512AVX2AVXFMA64-bit (x86-64)SSE4.1SSE4.2SSESSE2SSE3SSSE3MMX
Not recorded
AES-NIAMXAVX-VNNICETCET-IBTCET-SS

Security and Reliability

0 supported
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware Shield

Virtualization

0 supported
Not recorded
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTIOMMUSecond-Level Address Translation

The Intel Xeon W-2191B supports AVX-512, AVX2, AVX, FMA, 64-bit (x86-64), SSE4.1, SSE4.2, SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. Feex has no record for AES-NI, AMX, AVX-VNNI, CET, CET-IBT and CET-SS, which is different from being unsupported.

Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Boot Guard, Hardware RNG and Hardware Shield, which is different from being unsupported.

Feex has no record for Extended Page Tables (EPT), VT-d (DMA Remapping), VT-x (Hardware Virtualization), VT-x with EPT, IOMMU and Second-Level Address Translation, which is different from being unsupported.

Naming & Aliases

Display Name
Intel® Xeon™ W-2191B
Normalized Name
Intel® Xeon™ W-2191B
Product line brand
Xeon

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon W-2191B have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 49% of the specifications it tracks for the Intel Xeon W-2191B. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Channels, Memory Bandwidth and ECC Memory. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Common questions

How many cores and threads does the Intel Xeon W-2191B have?

The Intel Xeon W-2191B has 18 cores and 36 threads.

What socket does the Intel Xeon W-2191B use?

The Intel Xeon W-2191B uses the FCLGA2066 socket.

What memory does the Intel Xeon W-2191B support?

The Intel Xeon W-2191B supports DDR4.

How fast does the Intel Xeon W-2191B run?

The Intel Xeon W-2191B can boost up to 4.3 GHz, with a 2.3 GHz base clock.

What is the TDP of the Intel Xeon W-2191B?

The Intel Xeon W-2191B has a TDP of 140 W.

How does the Intel Xeon W-2191B perform?

In the Feex normalized performance dataset, the Intel Xeon W-2191B scores 27,931 multi-core and 2,478 single-core.

What advanced capabilities does the Intel Xeon W-2191B support?

Notable platform capabilities reported for the Intel Xeon W-2191B include AVX-512.

What is the Intel Xeon W-2191B best for?

Based on its specifications, the Intel Xeon W-2191B is well suited for Server / professional infrastructure.

How much cache does the Intel Xeon W-2191B have?

The Intel Xeon W-2191B has 1152 KB of L1 cache, 18432 KB of L2 cache and 24.75 MB of L3 cache.

How does the Intel Xeon W-2191B compare with the Intel Core i5-12400?

The Intel Xeon W-2191B has a computed performance index of 103, which is 3% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.