AMD EPYC 9645 vs Intel Xeon E5620

VS

AMD EPYC 9645

Intel Xeon E5620

We compared two server CPUs: AMD EPYC 9645 with 96 cores 2.3GHz and Intel Xeon E5620 with 4 cores 2.4GHz . 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 14 years and 7 months late

Higher specification of memory (6000 vs 3)

Newer PCIe version (5 vs 2)

Larger L3 cache size (256MB vs 12MB)

More modern manufacturing process (3nm vs 32nm)

Intel Xeon E5620 's Advantages

Higher base frequency (2.4GHz vs 2.3GHz)

Lower TDP (80W vs 320W)

Score

AMD EPYC 9645

VS

Intel Xeon E5620

General Parameters

Oct 2024

Release Date

Mar 2010

AMD

Manufacturer

Intel

Server

Type

Server

Turin

Core Architecture

Westmere-EP

AMD Socket SP5

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

EPYC(Zen 5c (Turin))

Generation

Xeon (Westmere-EP)

Package

Transistor Count

1.17 billions

3 nm

Manufacturing Process

32 nm

320 W

Power Consumption

80 W

TSMC

Foundry

Intel

mm²

Die Size

239 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

2.4 GHz

3.7 GHz

Performance Core Turbo Frequency

2.666 GHz

96

Total Core Count

4

192

Total Thread Count

8

100 MHz

Bus Frequency

133 MHz

23.0

Multiplier

18.0

80 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

256 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR5-6000

Memory Types

DDR3

6 TB

Max Memory Size

-

12

Max Memory Channels

3

576 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

AMD EPYC 9645

Official Website

-

5

PCIe Version

2

128

PCIe Lanes

-

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