CPU Comparison

A

AMD

AMD

AMD EPYC 7643

CORE STATE Milan

CORE SPECS 48 Cores / 96 Threads

CLOCK SPEED 2.3 Base / 3.6 GHz Turbo

CACHE 256 MB (shared)

MAX TDP 225W

ARCHITECTURE Zen 3

nm

PROCESS 7 nm

LAUNCH DATE 2021

VS

A

AMD

AMD

EPYC 9634

CORE STATE Genoa

CORE SPECS 84 Cores / 168 Threads

CLOCK SPEED 2.25 Base / 3.7 GHz Turbo

CACHE 384 MB (shared)

MAX TDP 290W

ARCHITECTURE Zen 4

nm

PROCESS 5 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

9,248

cinebench_cinebench_r15_singlecore

919

1,305

cinebench_cinebench_r20_multicore

27,149

38,535

cinebench_cinebench_r20_singlecore

3,832

5,440

cinebench_cinebench_r23_multicore

64,642

91,752

cinebench_cinebench_r23_singlecore

9,126

12,953

passmark_data_compression

N/A

2,236,412

passmark_data_encryption

N/A

151,943

passmark_extended_instructions

N/A

137,543

passmark_find_prime_numbers

N/A

1,176

passmark_floating_point_math

N/A

353,784

passmark_integer_math

N/A

725,356

passmark_multithread

N/A

107,944

passmark_physics

N/A

12,291

passmark_random_string_sorting

N/A

261,134

passmark_single_thread

N/A

2,924

passmark_singlethread

N/A

2,924

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

EPYC 9634

Core Specs

Cores

48

84 +75.0%

Threads

96

168 +75.0%

Base Clock (GHz)

2.3

2.25 -2.2%

Boost Clock (GHz)

3.6

3.7 +2.8%

Frequency (GHz)

2.3

2.25 -2.2%

Turbo Clock (GHz)

3.6

3.7 +2.8%

Multiplier

23

22.5 -2.2%

SMP CPUs

2

2 0.0%

Cache

L1 Cache

64 KB (per core)

64 KB (per core)

L2 Cache

512 KB (per core)

1 MB (per core)

L3 Cache

256 MB (shared)

384 MB (shared)

Power

TDP (W)

225

290 +28.9%

Configurable TDP

240 W

240-300 W

Architecture

Architecture

Zen 3

Zen 4

Codename

Milan

Genoa

Generation

EPYC (Zen 3 (Milan))

EPYC (Zen 4 (Genoa))

Process Size

7 nm

5 nm

Transistors

33,200 million

78,840 million

Die Size

8x 81 mm²

12x 72 mm²

Foundry

TSMC

TSMC

Memory

Memory Support

DDR4

DDR5

Memory Bus

Eight-channel

Twelve-channel

Memory Bandwidth

204.8 GB/s

460.8 GB/s

ECC Memory

Yes

Yes

Platform

Socket

AMD Socket SP3

AMD Socket SP5

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 5, 128 Lanes(CPU only)

AMD Multi-Die

CCDs

8

—

Cores per CCD

6

—

IO Process Size

12 nm

6 nm

Other

Market

Server/Workstation

Server/Workstation

Production Status

Active

Active

Launch Price

$4995

$10304

Part Number

100-000000326100-100000326WOF

100-100000797

Package

FCLGA-4094

FC-LGA6096

View EPYC 7643 Details View EPYC 9634 Details