AMD EPYC 7643 vs Intel Xeon Phi 7250F

VS

AMD EPYC 7643

Intel Xeon Phi 7250F

We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and Intel Xeon Phi 7250F with 68 cores 1.4GHz . 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

AMD EPYC 7643

VS

Intel Xeon Phi 7250F

General Parameters

Mar 2021

Release Date

Jun 2016

AMD

Manufacturer

Intel

Server

Type

Server

Milan

Core Architecture

Knights Landing

AMD Socket SP3

Socket

Intel Socket 3647

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Xeon Phi (Knights Landing)

Package

33.2 billions

Transistor Count

8 billions

7 nm

Manufacturing Process

14 nm

225 W

Power Consumption

230 W

TSMC

Foundry

Intel

8x81 mm²

Die Size

-

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.3 GHz

Performance Core Base Frequency

1.4 GHz

3.6 GHz

Performance Core Turbo Frequency

1.6 GHz

48

Total Core Count

68

96

Total Thread Count

272

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

14.0

64 KB per core

L1 Cache

32 K per core

512 KB per core

L2 Cache

512 K per core

256 MB shared

L3 Cache

-

No

Unlocked Multiplier

No

6

Cores per CCD

-

2

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR4

8

Max Memory Channels

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

-

128

PCIe Lanes

-

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