Intel Xeon E5649 vs AMD EPYC 7451

VS

Intel Xeon E5649

AMD EPYC 7451

We compared two server CPUs: Intel Xeon E5649 with 6 cores 2.533GHz and AMD EPYC 7451 with 24 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5649 's Advantages

Higher base frequency (2.533GHz vs 2.3GHz)

Lower TDP (80W vs 180W)

AMD EPYC 7451 's Advantages

Released 6 years and 4 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)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5649

411

AMD EPYC 7451 +113%

879

Geekbench 6 Multi Core

Intel Xeon E5649

1727

AMD EPYC 7451 +197%

5142

Intel Xeon E5649

VS

AMD EPYC 7451

General Parameters

Feb 2011

Release Date

Jun 2017

Intel

Manufacturer

AMD

Server

Type

Server

Westmere-EP

Core Architecture

Naples

Intel Socket 1366

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

EPYC (Zen (Naples))

Package

1.17 billions

Transistor Count

4.8 billions

32 nm

Manufacturing Process

14 nm

80 W

Power Consumption

180 W

-

Peak Operating Temperature

81 °C

Intel

Foundry

GlobalFoundries

239 mm²

Die Size

213 mm²

CPU Performance

2.533 GHz

Performance Core Base Frequency

2.3 GHz

2.8 GHz

Performance Core Turbo Frequency

3.2 GHz

6

Total Core Count

24

12

Total Thread Count

48

133 MHz

Bus Frequency

100 MHz

19.0

Multiplier

23.0

64 K per core

L1 Cache

96 K per core

256 K per core

L2 Cache

512 K per core

12 MB shared

L3 Cache

64 MB shared

No

Unlocked Multiplier

Yes

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR4-2666

3

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

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