AMD EPYC 9645 vs Intel Xeon E5 2666 v3

VS

AMD EPYC 9645

Intel Xeon E5-2666 v3

We compared two server CPUs: AMD EPYC 9645 with 96 cores 2.3GHz and Intel Xeon E5 2666 v3 with 10 cores 2.9GHz . 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 9 years and 11 months late

Higher specification of memory (6000 vs 2133)

Newer PCIe version (5 vs 3)

Larger L3 cache size (256MB vs 25MB)

More modern manufacturing process (3nm vs 22nm)

Intel Xeon E5 2666 v3 's Advantages

Higher base frequency (2.9GHz vs 2.3GHz)

Lower TDP (135W vs 320W)

Score

AMD EPYC 9645

VS

Intel Xeon E5 2666 v3

General Parameters

Oct 2024

Release Date

Nov 2014

AMD

Manufacturer

Intel

Server

Type

Server

Turin

Core Architecture

Haswell-EP

AMD Socket SP5

Socket

Intel Socket 2011-3

N/A

Integrated Graphics

N/A

EPYC(Zen 5c (Turin))

Generation

Xeon E5 (Haswell-EP)

Package

Transistor Count

2.6 billions

3 nm

Manufacturing Process

22 nm

320 W

Power Consumption

135 W

TSMC

Foundry

Intel

mm²

Die Size

356 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

2.9 GHz

3.7 GHz

Performance Core Turbo Frequency

3.5 GHz

96

Total Core Count

10

192

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

29.0

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

25 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR5-6000

Memory Types

DDR4-2133,DDR3-2133

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

40

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