AMD EPYC 7643 vs AMD EPYC 9334

VS

AMD EPYC 7643

AMD EPYC 9334

We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and AMD EPYC 9334 with 32 cores 2.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643 's Advantages

Larger L3 cache size (256MB vs 128MB)

AMD EPYC 9334 's Advantages

Released 1 years and 8 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (2.7GHz vs 2.3GHz)

More modern manufacturing process (5nm vs 7nm)

Lower TDP (210W vs 225W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7643

1696

AMD EPYC 9334 +13%

1926

Geekbench 6 Multi Core

AMD EPYC 7643

9939

AMD EPYC 9334 +108%

20734

AMD EPYC 7643

VS

AMD EPYC 9334

General Parameters

Mar 2021

Release Date

Nov 2022

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Genoa

AMD Socket SP3

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

EPYC (Zen 4 (Genoa))

Package

33.2 billions

Transistor Count

52.56 billions

7 nm

Manufacturing Process

5 nm

225 W

Power Consumption

210 W

TSMC

Foundry

TSMC

8x81 mm²

Die Size

4x72 mm²

12 nm

I/O Process Size

6 nm

416 mm²

I/O Die Size

397 mm²

CPU Performance

2.3 GHz

Performance Core Base Frequency

2.7 GHz

3.6 GHz

Performance Core Turbo Frequency

3.9 GHz

48

Total Core Count

32

96

Total Thread Count

64

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

27.0

64 KB per core

L1 Cache

64 K per core

512 KB per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

No

6

Cores per CCD

-

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR5-4800

8

Max Memory Channels

12

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

5

128

PCIe Lanes

128

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