Intel Xeon Phi 7250F vs AMD EPYC 7643

VS

Intel Xeon Phi 7250F

AMD EPYC 7643

We compared two server CPUs: Intel Xeon Phi 7250F with 68 cores 1.4GHz and AMD EPYC 7643 with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643 's Advantages

Released 4 years and 9 months late

Higher specification of memory (3200 vs 4)

Higher base frequency (2.3GHz vs 1.4GHz)

More modern manufacturing process (7nm vs 14nm)

Lower TDP (225W vs 230W)

Score

Intel Xeon Phi 7250F

VS

AMD EPYC 7643

General Parameters

Jun 2016

Release Date

Mar 2021

Intel

Manufacturer

AMD

Server

Type

Server

Knights Landing

Core Architecture

Milan

Intel Socket 3647

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

Xeon Phi (Knights Landing)

Generation

EPYC (Zen 3 (Milan))

Package

8 billions

Transistor Count

33.2 billions

14 nm

Manufacturing Process

7 nm

230 W

Power Consumption

225 W

Intel

Foundry

TSMC

-

Die Size

8x81 mm²

-

I/O Process Size

12 nm

-

I/O Die Size

416 mm²

CPU Performance

1.4 GHz

Performance Core Base Frequency

2.3 GHz

1.6 GHz

Performance Core Turbo Frequency

3.6 GHz

68

Total Core Count

48

272

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

14.0

Multiplier

23.0

32 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

512 KB per core

-

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

-

Cores per CCD

6

1

SMP

2

Memory Parameters

DDR4

Memory Types

DDR4-3200

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

-

PCIe Version

4

-

PCIe Lanes

128

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