Intel Xeon Phi 3120A vs AMD EPYC 9645

VS

Intel Xeon Phi 3120A

AMD EPYC 9645

We compared two server CPUs: Intel Xeon Phi 3120A with 57 cores 1.1GHz and AMD EPYC 9645 with 96 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon Phi 3120A 's Advantages

Lower TDP (300W vs 320W)

AMD EPYC 9645 's Advantages

Released 11 years and 4 months late

Higher specification of memory (6000 vs 4)

Higher base frequency (2.3GHz vs 1.1GHz)

More modern manufacturing process (3nm vs 22nm)

Score

Intel Xeon Phi 3120A

VS

AMD EPYC 9645

General Parameters

Jun 2013

Release Date

Oct 2024

PCIe

Manufacturer

AMD

Server

Type

Server

Knights Corner

Core Architecture

Turin

PCIe x16

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

Xeon Phi (Knights Corner)

Generation

EPYC(Zen 5c (Turin))

Package

5 billions

Transistor Count

22 nm

Manufacturing Process

3 nm

300 W

Power Consumption

320 W

Intel

Foundry

TSMC

350 mm²

Die Size

mm²

-

I/O Process Size

6 nm

-

I/O Die Size

mm²

CPU Performance

-

Performance Cores

96

-

Performance Core Threads

192

1.1 GHz

Performance Core Base Frequency

2.3 GHz

0

Performance Core Turbo Frequency

3.7 GHz

57

Total Core Count

96

228

Total Thread Count

192

100 MHz

Bus Frequency

100 MHz

11.0

Multiplier

23.0

32 K per core

L1 Cache

80 KB per core

512 K per core

L2 Cache

1 MB per core

-

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3,DDR4

Memory Types

DDR5-6000

-

Max Memory Size

6 TB

Max Memory Channels

12

-

Max Memory Bandwidth

576 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD EPYC 9645

-

PCIe Version

5

-

PCIe Lanes

128

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