Intel Xeon W 11855M vs AMD EPYC 9255

VS

Intel Xeon W-11855M

AMD EPYC 9255

We compared two server CPUs: Intel Xeon W 11855M with 6 cores 3.2GHz and AMD EPYC 9255 with 24 cores 3.25GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon W 11855M 's Advantages

Lower TDP (35W vs 200W)

AMD EPYC 9255 's Advantages

Released 3 years and 5 months late

Higher specification of memory (6000 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (3.25GHz vs 3.2GHz)

Larger L3 cache size (128MB vs 18MB)

More modern manufacturing process (4nm vs 10nm)

Score

Intel Xeon W 11855M

VS

AMD EPYC 9255

General Parameters

May 2021

Release Date

Oct 2024

Intel

Manufacturer

AMD

Server

Type

Server

Tiger Lake-H

Core Architecture

Turin

Intel BGA 1787

Socket

AMD Socket SP5

UHD Graphics 750

Integrated Graphics

N/A

Xeon (Tiger Lake-H)

Generation

EPYC(Zen 5 (Turin))

Package

-

Transistor Count

33.26 billions

10 nm

Manufacturing Process

4 nm

35 W

Power Consumption

200 W

72 °C

Peak Operating Temperature

-

Intel

Foundry

TSMC

190 mm²

Die Size

4x70.6 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

mm²

CPU Performance

-

Performance Cores

24

-

Performance Core Threads

48

3.2 GHz

Performance Core Base Frequency

3.25 GHz

4.9 GHz

Performance Core Turbo Frequency

4.8 GHz

6

Total Core Count

24

12

Total Thread Count

48

100 MHz

Bus Frequency

100 MHz

32.0

Multiplier

32.5

80 K per core

L1 Cache

80 KB per core

1.25 MB per core

L2 Cache

1 MB per core

18 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR5-6000

-

Max Memory Size

6 TB

2

Max Memory Channels

12

-

Max Memory Bandwidth

576 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD EPYC 9255

4

PCIe Version

5

20

PCIe Lanes

128

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