AMD EPYC Embedded 3251 vs Ryzen 5 PRO 7645

VS

AMD EPYC Embedded 3251

AMD Ryzen 5 PRO 7645

We compared two server CPUs: AMD EPYC Embedded 3251 with 8 cores 2.5GHz and Ryzen 5 PRO 7645 with 6 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC Embedded 3251 's Advantages

Lower TDP (55W vs 65W)

Ryzen 5 PRO 7645 's Advantages

Released 5 years and 4 months late

Higher specification of memory (5200 vs 2666)

Newer PCIe version (5 vs 3)

Higher base frequency (3.8GHz vs 2.5GHz)

Larger L3 cache size (32MB vs 16MB)

More modern manufacturing process (5nm vs 14nm)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC Embedded 3251

870

Ryzen 5 PRO 7645 +219%

2782

Geekbench 6 Multi Core

AMD EPYC Embedded 3251

4939

Ryzen 5 PRO 7645 +150%

12396

AMD EPYC Embedded 3251

VS

Ryzen 5 PRO 7645

General Parameters

Feb 2018

Release Date

Jun 2023

AMD

Manufacturer

AMD

Server

Type

Server

Zen

Core Architecture

Raphael

AMD BGA SP4r2

Socket

AMD Socket AM5

N/A

Integrated Graphics

Radeon Graphics

EPYC Embedded (Zen (Snowy Owl))

Generation

Ryzen 5 (Zen 4 (Raphael))

Package

4.8 billions

Transistor Count

6.57 billions

14 nm

Manufacturing Process

5 nm

55 W

Power Consumption

65 W

-

Peak Operating Temperature

61 °C

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

71 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

122 mm²

CPU Performance

2.5 GHz

Performance Core Base Frequency

3.8 GHz

3.1 GHz

Performance Core Turbo Frequency

5.1 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

25.0

Multiplier

38.0

96 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

1 MB per core

16 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

No

1

SMP

1

Memory Parameters

DDR4-2666

Memory Types

DDR5-5200

2

Max Memory Channels

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

5

32

PCIe Lanes

24

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