AMD EPYC 9645 vs Intel Xeon W 2191B

VS

AMD EPYC 9645

Intel Xeon W-2191B

We compared two server CPUs: AMD EPYC 9645 with 96 cores 2.3GHz and Intel Xeon W 2191B with 18 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9645 's Advantages

Released 6 years and 10 months late

Higher specification of memory (6000 vs 2666)

Newer PCIe version (5 vs 3)

Larger L3 cache size (256MB vs 24.75MB)

More modern manufacturing process (3nm vs 14nm)

Intel Xeon W 2191B 's Advantages

Lower TDP (140W vs 320W)

Score

AMD EPYC 9645

VS

Intel Xeon W 2191B

General Parameters

Oct 2024

Release Date

Dec 2017

AMD

Manufacturer

Intel

Server

Type

Server

Turin

Core Architecture

Skylake-W

AMD Socket SP5

Socket

Intel Socket 2066

N/A

Integrated Graphics

N/A

EPYC(Zen 5c (Turin))

Generation

Xeon W (Skylake-W)

Package

Transistor Count

-

3 nm

Manufacturing Process

14 nm

320 W

Power Consumption

140 W

-

Peak Operating Temperature

66 °C

TSMC

Foundry

Intel

mm²

Die Size

484 mm²

6 nm

I/O Process Size

-

mm²

I/O Die Size

-

CPU Performance

96

Performance Cores

-

192

Performance Core Threads

-

2.3 GHz

Performance Core Base Frequency

2.3 GHz

3.7 GHz

Performance Core Turbo Frequency

4.3 GHz

96

Total Core Count

18

192

Total Thread Count

36

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

23.0

80 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

24.75 MB shared

No

Unlocked Multiplier

No

2

SMP

1

-

AVX-512 FMA Ports

2

Memory Parameters

DDR5-6000

Memory Types

DDR4-2666

6 TB

Max Memory Size

-

12

Max Memory Channels

4

576 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

AMD EPYC 9645

Official Website

-

5

PCIe Version

3

128

PCIe Lanes

48

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