AMD EPYC 7663 vs Ryzen 5 PRO 7645

VS

AMD EPYC 7663

AMD Ryzen 5 PRO 7645

We compared two server CPUs: AMD EPYC 7663 with 56 cores 2GHz 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 7663 's Advantages

Larger L3 cache size (256MB vs 32MB)

Ryzen 5 PRO 7645 's Advantages

Released 2 years and 3 months late

Higher specification of memory (5200 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (3.8GHz vs 2GHz)

More modern manufacturing process (5nm vs 7nm)

Lower TDP (65W vs 240W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7663

777

Ryzen 5 PRO 7645 +258%

2782

Geekbench 6 Multi Core

AMD EPYC 7663

6330

Ryzen 5 PRO 7645 +95%

12396

AMD EPYC 7663

VS

Ryzen 5 PRO 7645

General Parameters

Mar 2021

Release Date

Jun 2023

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Raphael

AMD Socket SP3

Socket

AMD Socket AM5

N/A

Integrated Graphics

Radeon Graphics

EPYC (Zen 3 (Milan))

Generation

Ryzen 5 (Zen 4 (Raphael))

Package

33.2 billions

Transistor Count

6.57 billions

7 nm

Manufacturing Process

5 nm

240 W

Power Consumption

65 W

-

Peak Operating Temperature

61 °C

TSMC

Foundry

TSMC

8x81 mm²

Die Size

71 mm²

12 nm

I/O Process Size

6 nm

416 mm²

I/O Die Size

122 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

3.8 GHz

3.5 GHz

Performance Core Turbo Frequency

5.1 GHz

56

Total Core Count

6

112

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

20.0

Multiplier

38.0

64 KB per core

L1 Cache

64 KB per core

512 KB per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

No

7

Cores per CCD

-

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

128

PCIe Lanes

24

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