AMD EPYC 7643 vs Intel Xeon E5 2686 v3

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We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and Intel Xeon E5 2686 v3 with 18 cores 2GHz . 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 6 years and 6 months late

Higher specification of memory (DDR4-3200 vs DDR3)

Newer PCIe version (4 vs 3)

Higher base frequency (2.3GHz vs 2GHz)

Larger L3 cache size (256MB vs 45MB)

Intel Xeon E5 2686 v3 's Advantages

Lower TDP (120W vs 225W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7643 +64%

1696

Intel Xeon E5 2686 v3

1033

Geekbench 6 Multi Core

AMD EPYC 7643 +14%

9939

Intel Xeon E5 2686 v3

8649

AMD EPYC 7643

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Intel Xeon E5 2686 v3

General Parameters

Mar 2021

Release Date

Sep 2014

AMD

Manufacturer

Intel

Server

Type

Server

Milan

Core Architecture

Haswell-EP

AMD Socket SP3

Socket

Intel Socket 2011-3

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Xeon E5 (Haswell-EP)

Package

33.2 billions

Transistor Count

2.6 billions

7 nm

Manufacturing Process

22 nm

AMD Socket SP3

Socket

Intel Socket 2011-3

225 W

Power Consumption

120 W

-

Peak Operating Temperature

83 °C

TSMC

Foundry

Intel

8x81 mm²

Die Size

356 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

FCLGA-4094

Package

FC-LGA12A

CPU Performance

2.3 GHz

Performance Core Base Frequency

2 GHz

3.6 GHz

Performance Core Turbo Frequency

3.5 GHz

48

Total Core Count

18

96

Total Thread Count

36

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

20.0

64 KB per core

L1 Cache

64 K per core

512 KB per core

L2 Cache

256 K per core

256 MB shared

L3 Cache

45 MB shared

No

Unlocked Multiplier

No

6

Cores per CCD

-

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR3,

8

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

3

128

PCIe Lanes

40

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