AMD EPYC 7643P vs Opteron 6320

VS

AMD EPYC 7643P

AMD Opteron 6320

We compared two server CPUs: AMD EPYC 7643P with 48 cores 2.3GHz and Opteron 6320 with 8 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643P 's Advantages

Released 10 years and 10 months late

Higher specification of memory (3200 vs 1866)

Newer PCIe version (4 vs 2)

Larger L3 cache size (256MB vs 8MB)

More modern manufacturing process (7nm vs 32nm)

Opteron 6320 's Advantages

Higher base frequency (2.8GHz vs 2.3GHz)

Lower TDP (115W vs 225W)

Score

AMD EPYC 7643P

VS

Opteron 6320

General Parameters

Sep 2023

Release Date

Nov 2012

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Abu Dhabi

AMD Socket SP3

Socket

AMD Socket G34

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Opteron (Abu Dhabi)

Package

33.2 billions

Transistor Count

2.4 billions

7 nm

Manufacturing Process

32 nm

225 W

Power Consumption

115 W

-

Peak Operating Temperature

72 °C

TSMC

Foundry

GlobalFoundries

8x81 mm²

Die Size

2x315 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.3 GHz

Performance Core Base Frequency

2.8 GHz

3.6 GHz

Performance Core Turbo Frequency

3.3 GHz

48

Total Core Count

8

96

Total Thread Count

8

100 MHz

Bus Frequency

200 MHz

23.0

Multiplier

14.0

64 KB per core

L1 Cache

384 KB

512 KB per core

L2 Cache

2 MB per module

256 MB shared

L3 Cache

8 MB per die

No

Unlocked Multiplier

No

8

Cores per CCD

-

1

SMP

4

Memory Parameters

DDR4-3200

Memory Types

DDR3-1866

8

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

2

128

PCIe Lanes

-

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