AMD EPYC 7443 vs Intel Xeon E5645

VS

AMD EPYC 7443

Intel Xeon E5645

We compared two server CPUs: AMD EPYC 7443 with 24 cores 2.85GHz and Intel Xeon E5645 with 6 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7443 's Advantages

Released 11 years late

Higher specification of memory (3200 vs 3)

Newer PCIe version (4 vs 2)

Higher base frequency (2.85GHz vs 2.4GHz)

Larger L3 cache size (128MB vs 12MB)

More modern manufacturing process (7nm vs 32nm)

Intel Xeon E5645 's Advantages

Lower TDP (80W vs 200W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7443 +344%

1889

Intel Xeon E5645

425

Geekbench 6 Multi Core

AMD EPYC 7443 +10%

3458

Intel Xeon E5645

3117

AMD EPYC 7443

VS

Intel Xeon E5645

General Parameters

Mar 2021

Release Date

Mar 2010

AMD

Manufacturer

Intel

Server

Type

Server

Milan

Core Architecture

Westmere-EP

AMD Socket SP3

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Xeon (Westmere-EP)

Package

16.6 billions

Transistor Count

1.17 billions

7 nm

Manufacturing Process

32 nm

200 W

Power Consumption

80 W

TSMC

Foundry

Intel

4x81 mm²

Die Size

239 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.85 GHz

Performance Core Base Frequency

2.4 GHz

4 GHz

Performance Core Turbo Frequency

2.666 GHz

24

Total Core Count

6

48

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

28.5

Multiplier

18.0

64 KB per core

L1 Cache

64 K per core

512 KB per core

L2 Cache

256 K per core

128 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

6

Cores per CCD

-

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR3

8

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

2

128

PCIe Lanes

-

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