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

Ryzen 5 8400F

CORE STATE Phoenix

CORE SPECS 6 Cores / 12 Threads

CLOCK SPEED 4.2 Base / 4.7 GHz Turbo

CACHE 16 MB (shared)

MAX TDP 65W

ARCHITECTURE Zen 4

nm

PROCESS 4 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

2,101

cinebench_cinebench_r15_singlecore

919

296

cinebench_cinebench_r20_multicore

27,149

8,757

cinebench_cinebench_r20_singlecore

3,832

1,236

cinebench_cinebench_r23_multicore

64,642

20,851

cinebench_cinebench_r23_singlecore

9,126

2,943

3dmark_16_threads

N/A

6,091

3dmark_2_threads

N/A

1,874

3dmark_4_threads

N/A

3,563

3dmark_8_threads

N/A

5,275

3dmark_max_threads

N/A

6,165

3dmark_single_thread

N/A

951

passmark_data_compression

N/A

288,994

passmark_data_encryption

N/A

16,684

passmark_extended_instructions

N/A

22,274

passmark_find_prime_numbers

N/A

92

passmark_floating_point_math

N/A

46,096

passmark_integer_math

N/A

74,304

passmark_multithread

N/A

24,530

passmark_physics

N/A

1,391

passmark_random_string_sorting

N/A

34,645

passmark_single_thread

N/A

3,684

passmark_singlethread

N/A

3,684

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

5 8400F

Core Specs

Cores

48

6 -87.5%

Threads

96

12 -87.5%

Base Clock (GHz)

2.3

4.2 +82.6%

Boost Clock (GHz)

3.6

4.7 +30.6%

Frequency (GHz)

2.3

4.2 +82.6%

Turbo Clock (GHz)

3.6

4.7 +30.6%

Multiplier

23

42 +82.6%

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)

16 MB (shared)

Power

TDP (W)

225

65 -71.1%

PPT

—

61-88 W

Configurable TDP

240 W

45 W

Architecture

Architecture

Zen 3

Zen 4

Codename

Milan

Phoenix

Generation

EPYC (Zen 3 (Milan))

Ryzen 5 (Zen 4 (Phoenix))

Process Size

7 nm

4 nm

Transistors

33,200 million

25,000 million

Die Size

8x 81 mm²

178 mm²

Foundry

TSMC

TSMC

Memory

Memory Support

DDR4

DDR5

Memory Bus

Eight-channel

Dual-channel

Memory Bandwidth

204.8 GB/s

83.2 GB/s

ECC Memory

Yes

No

Platform

Socket

AMD Socket SP3

AMD Socket AM5

Chipsets

—

X670E, X670, B650E, B650, A620

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 4, 20 Lanes(CPU only)

AMD Multi-Die

CCDs

8

—

Cores per CCD

6

—

IO Process Size

12 nm

—

Other

Market

Server/Workstation

Desktop

Production Status

Active

Active

Launch Price

$4995

$170

Part Number

100-000000326100-100000326WOF

100-000001591

Package

FCLGA-4094

FC-LGA1718

Tj Max

—

95°C

View EPYC 7643 Details View Ryzen 5 8400F Details