AMD EPYC 7451 vs Intel Xeon E5645

VS

AMD EPYC 7451

Intel Xeon E5645

We compared two server CPUs: AMD EPYC 7451 with 24 cores 2.3GHz and Intel Xeon E5645 with 6 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7451 's Advantages

Released 7 years and 3 months late

Higher specification of memory (2666 vs 3)

Newer PCIe version (3 vs 2)

Larger L3 cache size (64MB vs 12MB)

More modern manufacturing process (14nm vs 32nm)

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 2.3GHz)

Lower TDP (80W vs 180W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7451 +106%

879

Intel Xeon E5645

425

Geekbench 6 Multi Core

AMD EPYC 7451 +64%

5142

Intel Xeon E5645

3117

AMD EPYC 7451

VS

Intel Xeon E5645

General Parameters

Jun 2017

Release Date

Mar 2010

AMD

Manufacturer

Intel

Server

Type

Server

Naples

Core Architecture

Westmere-EP

AMD Socket SP3

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

EPYC (Zen (Naples))

Generation

Xeon (Westmere-EP)

Package

4.8 billions

Transistor Count

1.17 billions

14 nm

Manufacturing Process

32 nm

180 W

Power Consumption

80 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

Intel

213 mm²

Die Size

239 mm²

CPU Performance

2.3 GHz

Performance Core Base Frequency

2.4 GHz

3.2 GHz

Performance Core Turbo Frequency

2.666 GHz

24

Total Core Count

6

48

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

23.0

Multiplier

18.0

96 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

256 K per core

64 MB shared

L3 Cache

12 MB shared

Yes

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-2666

Memory Types

DDR3

8

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

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