AMD EPYC 7251 vs AMD Ryzen Embedded 8640U

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AMD EPYC 7251

AMD Ryzen Embedded 8640U

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

Main Differences

AMD EPYC 7251 's Advantages

Larger L3 cache size (32MB vs 16MB)

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)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7251

781

AMD Ryzen Embedded 8640U +222%

2519

Geekbench 6 Multi Core

AMD EPYC 7251

3651

AMD Ryzen Embedded 8640U +182%

10308

AMD EPYC 7251

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AMD Ryzen Embedded 8640U

General Parameters

Jun 2017

Release Date

Apr 2024

AMD

Manufacturer

AMD

Server

Type

Server

Naples

Core Architecture

Hawk Point

AMD Socket SP3

Socket

AMD Socket FP8

N/A

Integrated Graphics

Radeon 760M

EPYC (Zen (Naples))

Generation

Ryzen Embedded (Zen 4 (Hawk Point))

Package

4.8 billions

Transistor Count

25 billions

14 nm

Manufacturing Process

4 nm

120 W

Power Consumption

28 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

178 mm²

CPU Performance

2.1 GHz

Performance Core Base Frequency

3.5 GHz

2.9 GHz

Performance Core Turbo Frequency

4.9 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

21.0

Multiplier

35.0

96 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR4-2400

Memory Types

DDR5-5600

8

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

4

-

PCIe Lanes

20

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