Intel Xeon E5645 vs AMD EPYC 9254

VS

Intel Xeon E5645

AMD EPYC 9254

We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and AMD EPYC 9254 with 24 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5645 's Advantages

Lower TDP (80W vs 200W)

AMD EPYC 9254 's Advantages

Released 12 years and 8 months late

Higher specification of memory (4800 vs 3)

Newer PCIe version (5 vs 2)

Higher base frequency (2.9GHz vs 2.4GHz)

Larger L3 cache size (128MB vs 12MB)

More modern manufacturing process (5nm vs 32nm)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5645

425

AMD EPYC 9254 +428%

2245

Geekbench 6 Multi Core

Intel Xeon E5645

3117

AMD EPYC 9254 +483%

18187

Intel Xeon E5645

VS

AMD EPYC 9254

General Parameters

Mar 2010

Release Date

Nov 2022

Intel

Manufacturer

AMD

Server

Type

Server

Westmere-EP

Core Architecture

Genoa

Intel Socket 1366

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

EPYC (Zen 4 (Genoa))

Package

1.17 billions

Transistor Count

26.28 billions

32 nm

Manufacturing Process

5 nm

80 W

Power Consumption

200 W

Intel

Foundry

TSMC

239 mm²

Die Size

4x72 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

397 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.9 GHz

2.666 GHz

Performance Core Turbo Frequency

4.15 GHz

6

Total Core Count

24

12

Total Thread Count

48

133 MHz

Bus Frequency

100 MHz

18.0

Multiplier

29.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

1 MB per core

12 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR5-4800

3

Max Memory Channels

12

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

5

-

PCIe Lanes

128

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