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 (DDR4-3200 vs DDR4-2666)

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

AMD Socket SP3

Socket

AMD Socket SP3

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

FCLGA-4094

Package

FCLGA-4094

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 2670 v2

2

AMD EPYC 7261 vs Opteron 2212 HE (F2)

3

AMD EPYC 7261 vs Intel Xeon Phi 7120D

4

AMD EPYC 7261 vs Intel Xeon Platinum 8354H

5

AMD EPYC 7261 vs Intel Xeon E5645

6

AMD EPYC 7261 vs AMD EPYC 7502P

7

AMD EPYC 7261 vs Intel Xeon Platinum 8268

8

AMD EPYC 7303 vs AMD EPYC 7261

9

AMD EPYC 7261 vs Intel Xeon Platinum 8462Y

10

AMD EPYC 7261 vs AMD EPYC 9754

Related News

1

Intel Adds 5 New Device IDs to Latest Linux Xe Kernel in Preparation for Battlemage

2

Ryzen AI 9 365 Benchmark Results Leaked: Significant Improvements in Multi-Core and IPC Performance Over Previous Generation

3

Concerns Raised by Unstable 13th/14th Gen Core CPUs: Motherboard Manufacturers Worry About Impact on Arrow Lake Release and Sales

4

Do You Really Know What a "Rendering Engine" Is? Read This Article to Understand All About It

5

New AMD Zen5 Ryzen 9000 Motherboards X870E/X870 to Adopt USB4! But You’ll Have to Wait Two More Months

6

Surpassing RTX 2050! Intel's Next-Gen Integrated Graphics Benchmark Closely Approaches AMD

7

New Benchmarks for AMD Ryzen AI 9 HX 370 Revealed: Single-Core Parity with R9 7945HX3D, Multi-Core Still Lower

8

X3D Performance Beyond Words! AMD Ryzen 7 9700X May Unlock Power Consumption: From 65W to 120W

9

First Benchmark Leak of Intel Core Ultra 7 268V: Single-Core Performance Soars by 20%, Still Lags Behind AMD

10

NVIDIA Grace CPU Benchmark Results Released, Stunning Performance