AMD EPYC 7663 vs AMD EPYC 9734

VS

AMD EPYC 7663

AMD EPYC 9734

We compared two server CPUs: AMD EPYC 7663 with 56 cores 2GHz and AMD EPYC 9734 with 112 cores 2.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7663 's Advantages

Lower TDP (240W vs 340W)

AMD EPYC 9734 's Advantages

Released 2 years and 3 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (2.2GHz vs 2GHz)

More modern manufacturing process (5nm vs 7nm)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7663

777

AMD EPYC 9734 +115%

1673

Geekbench 6 Multi Core

AMD EPYC 7663

6330

AMD EPYC 9734 +103%

12850

AMD EPYC 7663

VS

AMD EPYC 9734

General Parameters

Mar 2021

Release Date

Jun 2023

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Bergamo

AMD Socket SP3

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

EPYC (Zen 4c (Bergamo))

Package

33.2 billions

Transistor Count

71 billions

7 nm

Manufacturing Process

5 nm

240 W

Power Consumption

340 W

TSMC

Foundry

TSMC

8x81 mm²

Die Size

8x73 mm²

12 nm

I/O Process Size

6 nm

416 mm²

I/O Die Size

397 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

2.2 GHz

3.5 GHz

Performance Core Turbo Frequency

3 GHz

56

Total Core Count

112

Total Thread Count

224

100 MHz

Bus Frequency

100 MHz

20.0

Multiplier

22.0

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

256 MB shared

No

Unlocked Multiplier

No

7

Cores per CCD

-

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR5-4800

8

Max Memory Channels

12

-

Max Memory Bandwidth

460.8 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD EPYC 9734

4

PCIe Version

5

128

PCIe Lanes

128

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