Intel Xeon L5638 vs AMD EPYC 7643P

VS

Intel Xeon L5638

AMD EPYC 7643P

We compared two server CPUs: Intel Xeon L5638 with 6 cores 2GHz and AMD EPYC 7643P with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon L5638 's Advantages

Lower TDP (60W vs 225W)

AMD EPYC 7643P 's Advantages

Released 13 years and 6 months late

Higher specification of memory (3200 vs 3)

Newer PCIe version (4 vs 2)

Higher base frequency (2.3GHz vs 2GHz)

Larger L3 cache size (256MB vs 12MB)

More modern manufacturing process (7nm vs 32nm)

Score

Intel Xeon L5638

VS

AMD EPYC 7643P

General Parameters

Mar 2010

Release Date

Sep 2023

Intel

Manufacturer

AMD

Server

Type

Server

Westmere-EP

Core Architecture

Milan

Intel Socket 1366

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

EPYC (Zen 3 (Milan))

Package

1.17 billions

Transistor Count

33.2 billions

32 nm

Manufacturing Process

7 nm

60 W

Power Consumption

225 W

Intel

Foundry

TSMC

239 mm²

Die Size

8x81 mm²

-

I/O Process Size

12 nm

-

I/O Die Size

416 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

2.3 GHz

2.4 GHz

Performance Core Turbo Frequency

3.6 GHz

6

Total Core Count

48

12

Total Thread Count

96

133 MHz

Bus Frequency

100 MHz

15.0

Multiplier

23.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

512 KB per core

12 MB shared

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

-

Cores per CCD

8

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR4-3200

3

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

4

-

PCIe Lanes

128

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