AMD EPYC 9634 vs AMD EPYC 7251

VS

AMD EPYC 9634

AMD EPYC 7251

We compared two server CPUs: AMD EPYC 9634 with 84 cores 2.25GHz and AMD EPYC 7251 with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9634 's Advantages

Released 5 years and 5 months late

Higher specification of memory (4800 vs 2400)

Newer PCIe version (5 vs 3)

Higher base frequency (2.25GHz vs 2.1GHz)

Larger L3 cache size (384MB vs 32MB)

More modern manufacturing process (5nm vs 14nm)

AMD EPYC 7251 's Advantages

Lower TDP (120W vs 290W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 9634 +61%

1262

AMD EPYC 7251

781

Geekbench 6 Multi Core

AMD EPYC 9634 +53%

5595

AMD EPYC 7251

3651

AMD EPYC 9634

VS

AMD EPYC 7251

General Parameters

Nov 2022

Release Date

Jun 2017

AMD

Manufacturer

AMD

Server

Type

Server

Genoa

Core Architecture

Naples

AMD Socket SP5

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 4 (Genoa))

Generation

EPYC (Zen (Naples))

Package

78.84 billions

Transistor Count

4.8 billions

5 nm

Manufacturing Process

14 nm

290 W

Power Consumption

120 W

-

Peak Operating Temperature

81 °C

TSMC

Foundry

GlobalFoundries

12x72 mm²

Die Size

213 mm²

6 nm

I/O Process Size

-

397 mm²

I/O Die Size

-

CPU Performance

2.25 GHz

Performance Core Base Frequency

2.1 GHz

3.7 GHz

Performance Core Turbo Frequency

2.9 GHz

84

Total Core Count

8

168

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

21.0

64 K per core

L1 Cache

96 K per core

1 MB per core

L2 Cache

512 K per core

384 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

2

SMP

2

Memory Parameters

DDR5-4800

Memory Types

DDR4-2400

12

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

3

128

PCIe Lanes

-

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