CPU Comparison

A

AMD

AMD

AMD EPYC 7643P

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 2023

VS

A

AMD

AMD

Ryzen 9 9955HX

CORE STATE Fire Range

CORE SPECS 16 Cores / 32 Threads

CLOCK SPEED 2.5 Base / 5.4 GHz Turbo

CACHE 64 MB (shared)

MAX TDP 55W

ARCHITECTURE Zen 5

nm

PROCESS 4 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,623

4,922

cinebench_cinebench_r15_singlecore

934

694

cinebench_cinebench_r20_multicore

27,598

20,510

cinebench_cinebench_r20_singlecore

3,895

2,895

cinebench_cinebench_r23_multicore

65,710

48,834

cinebench_cinebench_r23_singlecore

9,276

6,894

passmark_data_compression

1,326,051

753,225

passmark_data_encryption

95,606

38,386

passmark_extended_instructions

67,398

59,765

passmark_find_prime_numbers

651

296

passmark_floating_point_math

216,592

140,152

passmark_integer_math

390,775

218,727

passmark_multithread

77,307

57,640

passmark_physics

8,002

2,792

passmark_random_string_sorting

160,274

79,529

passmark_single_thread

2,655

4,459

passmark_singlethread

2,655

4,459

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643P

9 9955HX

Core Specs

Cores

48

16 -66.7%

Threads

96

32 -66.7%

Base Clock (GHz)

2.3

2.5 +8.7%

Boost Clock (GHz)

3.6

5.4 +50.0%

Frequency (GHz)

2.3

2.5 +8.7%

Turbo Clock (GHz)

3.6

5.4 +50.0%

Multiplier

23

25 +8.7%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

64 KB (per core)

80 KB (per core)

L2 Cache

512 KB (per core)

1 MB (per core)

L3 Cache

256 MB (shared)

64 MB (shared)

Power

TDP (W)

225

55 -75.6%

PPT

—

74-101 W

Configurable TDP

240 W

75 W

Architecture

Architecture

Zen 3

Zen 5

Codename

Milan

Fire Range

Generation

EPYC (Zen 3 (Milan))

Ryzen 9 (Zen 5 (Fire Range))

Process Size

7 nm

4 nm

Transistors

33,200 million

16,630 million

Die Size

8x 81 mm²

2x 70.6 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 FL1

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 5, 28 Lanes(CPU only)

AMD Multi-Die

CCDs

8

—

Cores per CCD

8

—

IO Process Size

12 nm

6 nm

Graphics

Integrated Graphics

—

Radeon 610M

Other

Market

Server/Workstation

Mobile

Production Status

Active

Active

Launch Price

$2722

—

Part Number

100-000001285

100-000001028

Package

FCLGA-4094

µFC-BGAFL1

Tj Max

—

100°C

Bundled Cooler

—

None

View EPYC 7643P Details View Ryzen 9 9955HX Details