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

i

Intel

INTEL

Core Ultra 7 256V

CORE STATE Lunar Lake

CORE SPECS 8 Cores / 8 Threads

CLOCK SPEED 2.2 Base / 4.8 GHz Turbo

CACHE 12 MB (shared)

MAX TDP 17W

ARCHITECTURE Lunar Lake

nm

PROCESS 3 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

1,706

cinebench_cinebench_r15_singlecore

919

240

cinebench_cinebench_r20_multicore

27,149

7,111

cinebench_cinebench_r20_singlecore

3,832

1,003

cinebench_cinebench_r23_multicore

64,642

16,932

cinebench_cinebench_r23_singlecore

9,126

2,390

passmark_data_compression

N/A

189,814

passmark_data_encryption

N/A

14,265

passmark_extended_instructions

N/A

16,182

passmark_find_prime_numbers

N/A

195

passmark_floating_point_math

N/A

58,951

passmark_integer_math

N/A

43,350

passmark_multithread

N/A

19,894

passmark_physics

N/A

1,628

passmark_random_string_sorting

N/A

22,902

passmark_single_thread

N/A

4,030

passmark_singlethread

N/A

4,030

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

Ultra 7 256V

Core Specs

Cores

48

8 -83.3%

Threads

96

8 -91.7%

Base Clock (GHz)

2.3

2.2 -4.3%

Boost Clock (GHz)

3.6

4.8 +33.3%

Frequency (GHz)

2.3

2.2 -4.3%

Turbo Clock (GHz)

3.6

4.8 +33.3%

Multiplier

23

22 -4.3%

SMP CPUs

2

1 -50.0%

Cache

L1 Cache

64 KB (per core)

192 KB (per core)

L2 Cache

512 KB (per core)

2.5 MB (per core)

L3 Cache

256 MB (shared)

12 MB (shared)

Power

TDP (W)

225

17 -92.4%

Configurable TDP

240 W

—

Architecture

Architecture

Zen 3

Lunar Lake

Codename

Milan

Lunar Lake

Generation

EPYC (Zen 3 (Milan))

Ultra 7 (Lunar Lake)

Process Size

7 nm

3 nm

Transistors

33,200 million

—

Die Size

8x 81 mm²

—

Foundry

TSMC

TSMC

Memory

Memory Support

DDR4

unknown Depends on motherboard

Memory Bus

Eight-channel

Dual-channel

Memory Bandwidth

204.8 GB/s

—

ECC Memory

Yes

No

Platform

Socket

AMD Socket SP3

Intel BGA 2833

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 5, 4 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

—

P-Cores: 4 E-Cores: 4

E-Core Frequency

—

2.2 GHz up to 3.7 GHz

AMD Multi-Die

CCDs

8

—

Cores per CCD

6

—

IO Process Size

12 nm

—

AI/NPU

NPU

—

Yes / 47 TOPS

Graphics

Integrated Graphics

—

Arc 140V

Other

Market

Server/Workstation

Mobile

Production Status

Active

Active

Launch Price

$4995

—

Part Number

100-000000326100-100000326WOF

SRPMPSRPMZ

Package

FCLGA-4094

FC-BGA

Tj Max

—

100°C

View EPYC 7643 Details View Core Ultra 7 256V Details