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 7 7840HS

CORE STATE Phoenix

CORE SPECS 8 Cores / 16 Threads

CLOCK SPEED 3.8 Base / 5.1 GHz Turbo

CACHE 16 MB (shared)

MAX TDP 35W

ARCHITECTURE Zen 4

nm

PROCESS 4 nm

LAUNCH DATE —

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

2,453

cinebench_cinebench_r15_singlecore

919

346

cinebench_cinebench_r20_multicore

27,149

10,221

cinebench_cinebench_r20_singlecore

3,832

1,442

cinebench_cinebench_r23_multicore

64,642

24,337

cinebench_cinebench_r23_singlecore

9,126

3,435

3dmark_16_threads

N/A

7,314

3dmark_2_threads

N/A

1,904

3dmark_4_threads

N/A

3,651

3dmark_8_threads

N/A

6,092

3dmark_max_threads

N/A

7,316

3dmark_single_thread

N/A

979

geekbench_multicore

N/A

10,996

geekbench_singlecore

N/A

2,357

passmark_data_compression

N/A

345,536

passmark_data_encryption

N/A

20,627

passmark_extended_instructions

N/A

25,747

passmark_find_prime_numbers

N/A

88

passmark_floating_point_math

N/A

59,921

passmark_integer_math

N/A

98,682

passmark_multithread

N/A

28,633

passmark_physics

N/A

1,376

passmark_random_string_sorting

N/A

40,364

passmark_single_thread

N/A

3,753

passmark_singlethread

N/A

3,753

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

7 7840HS

Core Specs

Cores

48

8 -83.3%

Threads

96

16 -83.3%

Base Clock (GHz)

2.3

3.8 +65.2%

Boost Clock (GHz)

3.6

5.1 +41.7%

Frequency (GHz)

2.3

3.8 +65.2%

Turbo Clock (GHz)

3.6

5.1 +41.7%

Multiplier

23

38 +65.2%

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

35 -84.4%

Configurable TDP

240 W

35-54 W

Architecture

Architecture

Zen 3

Zen 4

Codename

Milan

Phoenix

Generation

EPYC (Zen 3 (Milan))

Ryzen 7 (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

89.6 GB/s

ECC Memory

Yes

Yes

Platform

Socket

AMD Socket SP3

AMD Socket FP8

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

—

Graphics

Integrated Graphics

—

Radeon 780M

Other

Market

Server/Workstation

Mobile

Production Status

Active

Active

Launch Price

$4995

—

Part Number

100-000000326100-100000326WOF

100-000000955(FP7r2)100-000000964(FP7)100-000001129(FP8)

Package

FCLGA-4094

FP8, FP7, FP7r2

Tj Max

—

100°C

View EPYC 7643 Details View Ryzen 7 7840HS Details