AMD EPYC 7742 vs AMD Ryzen Embedded 8640U

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We compared two server CPUs: AMD EPYC 7742 with 64 cores 2.25GHz 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 7742 's Advantages

Larger L3 cache size (256MB vs 16MB)

AMD Ryzen Embedded 8640U 's Advantages

Released 4 years and 8 months late

Higher specification of memory (DDR5-5600 vs DDR4-3200)

Higher base frequency (3.5GHz vs 2.25GHz)

More modern manufacturing process (4nm vs 7nm)

Lower TDP (28W vs 225W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7742

404

AMD Ryzen Embedded 8640U +523%

2519

Geekbench 6 Multi Core

AMD EPYC 7742

170

AMD Ryzen Embedded 8640U +5963%

10308

AMD EPYC 7742

VS

AMD Ryzen Embedded 8640U

General Parameters

Aug 2019

Release Date

Apr 2024

AMD

Manufacturer

AMD

Server

Type

Server

Rome

Core Architecture

Hawk Point

AMD Socket SP3

Socket

AMD Socket FP8

N/A

Integrated Graphics

Radeon 760M

EPYC (Zen 2 (Rome))

Generation

Ryzen Embedded (Zen 4 (Hawk Point))

Package

3.8 billions

Transistor Count

25 billions

7 nm

Manufacturing Process

4 nm

AMD Socket SP3

Socket

AMD Socket FP8

225 W

Power Consumption

28 W

TSMC

Foundry

TSMC

74 mm²

Die Size

178 mm²

FCLGA-4094

Package

FP8, FP7, FP7r2

CPU Performance

2.25 GHz

Performance Core Base Frequency

3.5 GHz

3.4 GHz

Performance Core Turbo Frequency

4.9 GHz

64

Total Core Count

6

128

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

35.0

96 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR5-5600

8

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

4

-

PCIe Lanes

20

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