AMD EPYC 7742 vs AMD Ryzen 9 PRO 7945

VS

AMD EPYC 7742

AMD Ryzen 9 PRO 7945

We compared two server CPUs: AMD EPYC 7742 with 64 cores 2.25GHz and AMD Ryzen 9 PRO 7945 with 12 cores 3.7GHz . 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 64MB)

AMD Ryzen 9 PRO 7945 's Advantages

Released 3 years and 10 months late

Higher specification of memory (5200 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (3.7GHz vs 2.25GHz)

More modern manufacturing process (5nm vs 7nm)

Lower TDP (65W vs 225W)

Score

Benchmark

Cinebench R23 Single Core

AMD EPYC 7742

997

AMD Ryzen 9 PRO 7945 +96%

1964

Cinebench R23 Multi Core

AMD EPYC 7742 +87%

54063

AMD Ryzen 9 PRO 7945

28905

Geekbench 6 Single Core

AMD EPYC 7742

404

AMD Ryzen 9 PRO 7945 +615%

2892

Geekbench 6 Multi Core

AMD EPYC 7742

170

AMD Ryzen 9 PRO 7945 +8438%

14516

AMD EPYC 7742

VS

AMD Ryzen 9 PRO 7945

General Parameters

Aug 2019

Release Date

Jun 2023

AMD

Manufacturer

AMD

Server

Type

Server

Rome

Core Architecture

Raphael

AMD Socket SP3

Socket

AMD Socket AM5

N/A

Integrated Graphics

Radeon Graphics

EPYC (Zen 2 (Rome))

Generation

Ryzen 9 (Zen 4 (Raphael))

Package

3.8 billions

Transistor Count

13.14 billions

7 nm

Manufacturing Process

5 nm

225 W

Power Consumption

65 W

-

Peak Operating Temperature

47 °C

TSMC

Foundry

TSMC

74 mm²

Die Size

2x71 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

122 mm²

CPU Performance

2.25 GHz

Performance Core Base Frequency

3.7 GHz

3.4 GHz

Performance Core Turbo Frequency

5.4 GHz

64

Total Core Count

12

128

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

37.0

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

64 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR5-5200

8

Max Memory Channels

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

5

-

PCIe Lanes

24

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