AMD Ryzen Embedded 8640U vs AMD EPYC 7251

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AMD Ryzen Embedded 8640U

AMD EPYC 7251

We compared two server CPUs: AMD Ryzen Embedded 8640U with 6 cores 3.5GHz and AMD EPYC 7251 with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen Embedded 8640U 's Advantages

Released 6 years and 10 months late

Higher specification of memory (5600 vs 2400)

Newer PCIe version (4 vs 3)

Higher base frequency (3.5GHz vs 2.1GHz)

More modern manufacturing process (4nm vs 14nm)

Lower TDP (28W vs 120W)

AMD EPYC 7251 's Advantages

Larger L3 cache size (32MB vs 16MB)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen Embedded 8640U +222%

2519

AMD EPYC 7251

781

Geekbench 6 Multi Core

AMD Ryzen Embedded 8640U +182%

10308

AMD EPYC 7251

3651

AMD Ryzen Embedded 8640U

VS

AMD EPYC 7251

General Parameters

Apr 2024

Release Date

Jun 2017

AMD

Manufacturer

AMD

Server

Type

Server

Hawk Point

Core Architecture

Naples

AMD Socket FP8

Socket

AMD Socket SP3

Radeon 760M

Integrated Graphics

N/A

Ryzen Embedded (Zen 4 (Hawk Point))

Generation

EPYC (Zen (Naples))

Package

25 billions

Transistor Count

4.8 billions

4 nm

Manufacturing Process

14 nm

28 W

Power Consumption

120 W

-

Peak Operating Temperature

81 °C

TSMC

Foundry

GlobalFoundries

178 mm²

Die Size

213 mm²

CPU Performance

3.5 GHz

Performance Core Base Frequency

2.1 GHz

4.9 GHz

Performance Core Turbo Frequency

2.9 GHz

6

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

35.0

Multiplier

21.0

64 KB per core

L1 Cache

96 K per core

1 MB per core

L2 Cache

512 K per core

16 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

1

SMP

2

Memory Parameters

DDR5-5600

Memory Types

DDR4-2400

2

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

3

20

PCIe Lanes

-

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