AMD EPYC 7643 vs Intel Xeon E5 2640

VS

AMD EPYC 7643

Intel Xeon E5-2640

We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and Intel Xeon E5 2640 with 6 cores 2.5GHz . 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 9 years late

Higher specification of memory (3200 vs 3)

Newer PCIe version (4 vs 3)

Larger L3 cache size (256MB vs 15MB)

More modern manufacturing process (7nm vs 32nm)

Intel Xeon E5 2640 's Advantages

Higher base frequency (2.5GHz vs 2.3GHz)

Lower TDP (95W vs 225W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7643 +112%

1696

Intel Xeon E5 2640

800

Geekbench 6 Multi Core

AMD EPYC 7643 +212%

9939

Intel Xeon E5 2640

3177

AMD EPYC 7643

VS

Intel Xeon E5 2640

General Parameters

Mar 2021

Release Date

Mar 2012

AMD

Manufacturer

Intel

Server

Type

Server

Milan

Core Architecture

Sandy Bridge-EP

AMD Socket SP3

Socket

Intel Socket 2011

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Xeon E5 (Sandy Bridge-EP)

Package

33.2 billions

Transistor Count

2.27 billions

7 nm

Manufacturing Process

32 nm

225 W

Power Consumption

95 W

TSMC

Foundry

Intel

8x81 mm²

Die Size

435 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.3 GHz

Performance Core Base Frequency

2.5 GHz

3.6 GHz

Performance Core Turbo Frequency

3 GHz

48

Total Core Count

6

96

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

25.0

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

15 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

-

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