AMD EPYC 7643 vs Opteron 8346 HE (B3)

VS

AMD EPYC 7643

AMD Opteron 8346 HE (B3)

We compared two server CPUs: AMD EPYC 7643 with 48 cores 2.3GHz and Opteron 8346 HE (B3) with 4 cores 1.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643 's Advantages

Released 12 years and 10 months late

Higher specification of memory (3200 vs 667)

Higher base frequency (2.3GHz vs 1.8GHz)

Larger L3 cache size (256MB vs 2MB)

More modern manufacturing process (7nm vs 65nm)

Opteron 8346 HE (B3) 's Advantages

Lower TDP (68W vs 225W)

Score

AMD EPYC 7643

VS

Opteron 8346 HE (B3)

General Parameters

Mar 2021

Release Date

May 2008

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Barcelona

AMD Socket SP3

Socket

AMD Socket Fr2

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Opteron(Barcelona)

Package

33.2 billions

Transistor Count

0.463 billions

7 nm

Manufacturing Process

65 nm

225 W

Power Consumption

68 W

TSMC

Foundry

-

8x81 mm²

Die Size

285 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.3 GHz

Performance Core Base Frequency

1.8 GHz

3.6 GHz

Performance Core Turbo Frequency

0

48

Total Core Count

4

96

Total Thread Count

4

100 MHz

Bus Frequency

200 MHz

23.0

Multiplier

9.0

64 KB per core

L1 Cache

64 KB per core

512 KB per core

L2 Cache

512 KB per core

256 MB shared

L3 Cache

2 MB shared

No

Unlocked Multiplier

No

6

Cores per CCD

-

2

SMP

8

Memory Parameters

DDR4-3200

Memory Types

DDR2-667

8

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

-

128

PCIe Lanes

-

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