AMD EPYC 8434P vs AMD EPYC 9255

VS

AMD EPYC 8434P

AMD EPYC 9255

We compared two server CPUs: AMD EPYC 8434P with 48 cores 2.5GHz 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

AMD EPYC 9255 's Advantages

Released 1 years and 1 months late

Higher specification of memory (6000 vs 4800)

Higher base frequency (3.25GHz vs 2.5GHz)

More modern manufacturing process (4nm vs 5nm)

Score

AMD EPYC 8434P

VS

AMD EPYC 9255

General Parameters

Sep 2023

Release Date

Oct 2024

AMD

Manufacturer

AMD

Server

Type

Server

Siena

Core Architecture

Turin

AMD Socket SP6

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen 4c (Siena))

Generation

EPYC(Zen 5 (Turin))

Package

35.5 billions

Transistor Count

33.26 billions

5 nm

Manufacturing Process

4 nm

200 W

Power Consumption

200 W

75 °C

Peak Operating Temperature

-

TSMC

Foundry

TSMC

4x73 mm²

Die Size

4x70.6 mm²

6 nm

I/O Process Size

6 nm

397 mm²

I/O Die Size

mm²

CPU Performance

-

Performance Cores

24

-

Performance Core Threads

48

2.5 GHz

Performance Core Base Frequency

3.25 GHz

3.1 GHz

Performance Core Turbo Frequency

4.8 GHz

48

Total Core Count

24

96

Total Thread Count

48

100 MHz

Bus Frequency

100 MHz

25.0

Multiplier

32.5

64 K per core

L1 Cache

80 KB per core

1 MB per core

L2 Cache

1 MB per core

128 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR5-4800

Memory Types

DDR5-6000

-

Max Memory Size

6 TB

6

Max Memory Channels

12

-

Max Memory Bandwidth

576 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD EPYC 9255

5

PCIe Version

5

96

PCIe Lanes

128

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