AMD EPYC 7663 vs AMD EPYC 7643

VS

AMD EPYC 7663

AMD EPYC 7643

We compared two server CPUs: AMD EPYC 7663 with 56 cores 2GHz and AMD EPYC 7643 with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643 's Advantages

Higher base frequency (2.3GHz vs 2GHz)

Lower TDP (225W vs 240W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7663

777

AMD EPYC 7643 +118%

1696

Geekbench 6 Multi Core

AMD EPYC 7663

6330

AMD EPYC 7643 +57%

9939

AMD EPYC 7663

VS

AMD EPYC 7643

General Parameters

Mar 2021

Release Date

Mar 2021

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Milan

AMD Socket SP3

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

EPYC (Zen 3 (Milan))

Package

33.2 billions

Transistor Count

33.2 billions

7 nm

Manufacturing Process

7 nm

240 W

Power Consumption

225 W

TSMC

Foundry

TSMC

8x81 mm²

Die Size

8x81 mm²

12 nm

I/O Process Size

12 nm

416 mm²

I/O Die Size

416 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

2.3 GHz

3.5 GHz

Performance Core Turbo Frequency

3.6 GHz

56

Total Core Count

48

112

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

20.0

Multiplier

23.0

64 KB per core

L1 Cache

64 KB per core

512 KB per core

L2 Cache

512 KB per core

256 MB shared

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

7

Cores per CCD

6

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR4-3200

8

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

4

128

PCIe Lanes

128

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