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

Xeon 6517P

CORE STATE Granite Rapids

CORE SPECS 16 Cores / 32 Threads

CLOCK SPEED 3.2 Base / 4.2 GHz Turbo

CACHE 72 MB (shared)

MAX TDP 190W

ARCHITECTURE Granite Rapids

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

6,515

4,247

cinebench_cinebench_r15_singlecore

919

599

cinebench_cinebench_r20_multicore

27,149

17,697

cinebench_cinebench_r20_singlecore

3,832

2,498

cinebench_cinebench_r23_multicore

64,642

42,136

cinebench_cinebench_r23_singlecore

9,126

5,948

passmark_data_compression

N/A

665,506

passmark_data_encryption

N/A

32,978

passmark_extended_instructions

N/A

52,333

passmark_find_prime_numbers

N/A

315

passmark_floating_point_math

N/A

128,525

passmark_integer_math

N/A

163,563

passmark_multithread

N/A

49,572

passmark_physics

N/A

3,940

passmark_random_string_sorting

N/A

65,031

passmark_single_thread

N/A

3,481

passmark_singlethread

N/A

3,481

DETAILED SPECIFICATIONS

SPECIFICATION

EPYC 7643

6517P

Core Specs

Cores

48

16 -66.7%

Threads

96

32 -66.7%

Base Clock (GHz)

2.3

3.2 +39.1%

Boost Clock (GHz)

3.6

4.2 +16.7%

Frequency (GHz)

2.3

3.2 +39.1%

Turbo Clock (GHz)

3.6

4.2 +16.7%

Multiplier

23

32 +39.1%

SMP CPUs

2

2 0.0%

Cache

L1 Cache

64 KB (per core)

112 KB (per core)

L2 Cache

512 KB (per core)

2 MB (per core)

L3 Cache

256 MB (shared)

72 MB (shared)

Power

TDP (W)

225

190 -15.6%

Configurable TDP

240 W

—

Architecture

Architecture

Zen 3

Granite Rapids

Codename

Milan

Granite Rapids

Generation

EPYC (Zen 3 (Milan))

Xeon 6 (Granite Rapids-SP)

Process Size

7 nm

5 nm

Transistors

33,200 million

—

Die Size

8x 81 mm²

—

Foundry

TSMC

Intel

Memory

Memory Support

DDR4

DDR5

Memory Bus

Eight-channel

Eight-channel

Memory Bandwidth

204.8 GB/s

409.6 GB/s

ECC Memory

Yes

Yes

Platform

Socket

AMD Socket SP3

Intel Socket 4710

PCIe

Gen 4, 128 Lanes(CPU only)

Gen 5, 88 Lanes(CPU only)

AMD Multi-Die

CCDs

8

—

Cores per CCD

6

—

IO Process Size

12 nm

10 nm

Interconnect

UPI Links

—

3 x24 24 GT/s

CXL

—

Gen 2.0, 64 Lanes (Shared with PCI-E)

Other

Market

Server/Workstation

Server/Workstation

Production Status

Active

Active

Launch Price

$4995

$1195

Part Number

100-000000326100-100000326WOF

SRVU4

Package

FCLGA-4094

FC-LGA18N

Tj Max

—

103°C

Bundled Cooler

—

None

View EPYC 7643 Details View Xeon 6517P Details