AMD EPYC 7261 vs AMD EPYC 7643

VS

AMD EPYC 7261

AMD EPYC 7643

We compared two server CPUs: AMD EPYC 7261 with 8 cores 2.5GHz and AMD EPYC 7643 with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7261 's Advantages

Higher base frequency (2.5GHz vs 2.3GHz)

Lower TDP (170W vs 225W)

AMD EPYC 7643 's Advantages

Released 2 years and 9 months late

Higher specification of memory (3200 vs 2666)

Newer PCIe version (4 vs 3)

Larger L3 cache size (256MB vs 32MB)

More modern manufacturing process (7nm vs 14nm)

Score

AMD EPYC 7261

VS

AMD EPYC 7643

General Parameters

Jun 2018

Release Date

Mar 2021

AMD

Manufacturer

AMD

Server

Type

Server

Naples

Core Architecture

Milan

AMD Socket SP3

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen (Naples))

Generation

EPYC (Zen 3 (Milan))

Package

4.8 billions

Transistor Count

33.2 billions

14 nm

Manufacturing Process

7 nm

170 W

Power Consumption

225 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

8x81 mm²

-

I/O Process Size

12 nm

-

I/O Die Size

416 mm²

CPU Performance

2.5 GHz

Performance Core Base Frequency

2.3 GHz

2.9 GHz

Performance Core Turbo Frequency

3.6 GHz

8

Total Core Count

48

16

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

25.0

Multiplier

23.0

96 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

512 KB per core

32 MB shared

L3 Cache

256 MB shared

Yes

Unlocked Multiplier

No

-

Cores per CCD

6

2

SMP

2

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200

8

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

4

-

PCIe Lanes

128

Related CPU Comparisons

1

AMD EPYC 7261 vs Intel Xeon E5 2650 v2

2

AMD EPYC 7261 vs Intel Xeon Gold 5315Y

3

AMD EPYC 7261 vs Intel Xeon E3 1505M v5

4

AMD EPYC 7261 vs Intel Xeon Platinum 8358

5

AMD EPYC 7261 vs Intel Xeon L5640

6

AMD EPYC 7261 vs Intel Xeon E5 2663 v3

7

AMD EPYC 7261 vs Opteron 1352 (B2)

8

AMD EPYC 7261 vs AMD EPYC 9845

9

AMD EPYC 7261 vs Intel Xeon W 2145

10

AMD EPYC 7261 vs AMD EPYC 8434PN

Related News

1

CXMT Reportedly Achieves 80% Yield in DDR5 Production

2

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

3

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

4

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

5

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

6

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

7

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

8

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

9

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

10

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage