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 8534P

CORE STATE Siena

CORE SPECS 64 Cores / 128 Threads

CLOCK SPEED 2.3 Base / 3.1 GHz Turbo

CACHE 128 MB (shared)

MAX TDP 200W

ARCHITECTURE Zen 4c

nm

PROCESS 5 nm

LAUNCH DATE 2023

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

6,160

cinebench_cinebench_r15_singlecore

919

869

cinebench_cinebench_r20_multicore

27,149

25,668

cinebench_cinebench_r20_singlecore

3,832

3,623

cinebench_cinebench_r23_multicore

64,642

61,115

cinebench_cinebench_r23_singlecore

9,126

8,628

passmark_data_compression

N/A

1,791,742

passmark_data_encryption

N/A

121,728

passmark_extended_instructions

N/A

112,860

passmark_find_prime_numbers

N/A

278

passmark_floating_point_math

N/A

289,443

passmark_integer_math

N/A

514,526

passmark_multithread

N/A

71,900

passmark_physics

N/A

3,667

passmark_random_string_sorting

N/A

129,479

passmark_single_thread

N/A

2,441

passmark_singlethread

N/A

2,441

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

EPYC 8534P

Core Specs

Cores

48

64 +33.3%

Threads

96

128 +33.3%

Base Clock (GHz)

2.3

2.3 0.0%

Boost Clock (GHz)

3.6

3.1 -13.9%

Frequency (GHz)

2.3

2.3 0.0%

Turbo Clock (GHz)

3.6

3.1 -13.9%

Multiplier

23

23 0.0%

SMP CPUs

2

1 -50.0%

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)

128 MB (shared)

Power

TDP (W)

225

200 -11.1%

Configurable TDP

240 W

155-225 W

Architecture

Architecture

Zen 3

Zen 4c

Codename

Milan

Siena

Generation

EPYC (Zen 3 (Milan))

EPYC (Zen 4c (Siena))

Process Size

7 nm

5 nm

Transistors

33,200 million

35,500 million

Die Size

8x 81 mm²

4x 73 mm²

Foundry

TSMC

TSMC

Memory

Memory Support

DDR4

DDR5

Memory Bus

Eight-channel

Six-channel

Memory Bandwidth

204.8 GB/s

230.4 GB/s

ECC Memory

Yes

Yes

Platform

Socket

AMD Socket SP3

AMD Socket SP6

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 5, 96 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

$4950

Part Number

100-000000326100-100000326WOF

100-000000875

Package

FCLGA-4094

FC-LGA4844

Bundled Cooler

—

None

View EPYC 7643 Details View EPYC 8534P Details