Top 10

AMD EPYC 7643

AMD EPYC 7643

AMD EPYC 7643 is a Server processor from AMD. It began to be released in March 2021. The CPU belongs to the Milan family. The processor has 48 cores and 96 threads. And the processor is also made using 7 nm technology. Its characteristics, as well as benchmark results, are presented in more detail below.

Top Server CPU: 9

Basic

Label Name
AMD
Platform
Server
Launch Date
March 2021
Code Name
Milan

CPU Specifications

Total Cores
?
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
48
Total Threads
?
Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.
96
Basic Frequency
2.3GHz
Max Turbo Frequency
?
Max Turbo Frequency is the maximum single-core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology and, if present, Intel® Turbo Boost Max Technology 3.0 and Intel® Thermal Velocity Boost. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.
Up to 3.6GHz
L3 Cache
256MB
CPU Socket
?
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
SP3
Technology
?
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
7 nm
TDP
225W
PCI Express Version
?
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
PCIe 4.0 x128

Memory Specifications

Memory Type
?
Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.
DDR4
Memory Channels
?
The number of memory channels refers to the bandwidth operation for real world application.
8
Bus Speed
Up to 3200MT/s

Geekbench 6

Single Core
1704
Multi Core
19302

Performance

257.6
MB/Sec
File Compression
1.77
10.2
Routes/Sec
Navigation
133.2
35.4
Pages/Sec
HTML5 Browser
518.4
39.2
MPixels/Sec
PDF Renderer
410.8
19.8
Images/Sec
Photo Library
392.7
8.4
KLines/Sec
Clang
233.9
134
Pages/Sec
Text Processing
168.6
51.6
MB/Sec
Asset Compression
1.11
26.5
Images/Sec
Object Detection
314.7
9.35
Images/Sec
Background Blur
47.7
71.7
MPixels/Sec
Horizon Detection
1.06
145.7
MPixels/Sec
Object Remover
1.4
53.4
MPixels/Sec
HDR
591.7
22.1
Images/Sec
Photo Filter
151.8
1.59
KPixels/Sec
Ray Tracer
63.7
63.6
KPixels/Sec
Structure from Motion
893.3
Single Core
Multi Core

Passmark CPU

Single Core
2695
Multi Core
76455

Performance

Integer Math
Multi Core
392.7 GOps/Sec
Floating Point Math
Multi Core
227.2 GOps/Sec
Find Prime Numbers
Multi Core
624 M Primes/Sec
Random String Sorting
Multi Core
135 M Strings/Sec
Data Encryption
Multi Core
80 GB/Sec
Data Compression
Multi Core
1276.8 MB/Sec
Physics
Multi Core
7168 Frames/Sec
Extended Instructions
Multi Core
82.6 B Matrices/Sec
Single Thread
Multi Core
2.7 GOps/Sec
Show more

Geekbench 5

Single Core
1157
Multi Core
4293

Compared to Other CPU

100%
92%
98%
Better then 100% CPU over the past year
Better then 92% CPU over the past 3 years
Better then 98% CPU

SiliconCat Rating

9
Ranks 9 among Server CPU on our website
36
Ranks 36 among all CPU on our website
Geekbench 6 Single Core
Ryzen 5 5500GT
AMD, January 2024
1887
Core i7-1185GRE
Intel, July 2020
1780
EPYC 7643
AMD, March 2021
1704
Ryzen 5 3500X
AMD, September 2019
1634
Ryzen 7 4800U
AMD, January 2020
1564
Geekbench 6 Multi Core
M4 Ultra
Apple, May 2025
32192
EPYC 7643
AMD, March 2021
19302
EPYC 7502P
AMD, August 2019
15636
Core i5-14490F
Intel, January 2024
13801
Snapdragon X Plus
Qualcomm, April 2024
12410
Geekbench 5 Single Core
Core i3-1115G4E
Intel, July 2020
1226
Xeon E-2146G
Intel, July 2018
1190
EPYC 7643
AMD, March 2021
1157
Core i9-9920X
Intel, October 2018
1127
Core i7-9750HF
Intel, April 2019
1101
Geekbench 5 Multi Core
Ryzen 7 4700G
AMD, July 2020
4844
Core i7-7700K
Intel, January 2017
4592
EPYC 7643
AMD, March 2021
4293
Xeon E5-2630L
Intel, March 2012
4078
Opteron 6386 SE
AMD, November 2012
3893
Passmark CPU Single Core
Xeon W-1290E
Intel, April 2020
2806
Ryzen 3 PRO 5450U
AMD, March 2021
2740
EPYC 7643
AMD, March 2021
2695
EPYC 7573X
AMD, March 2022
2663
Xeon W-2295
Intel, October 2019
2620
Passmark CPU Multi Core
153173
EPYC 7643
AMD, March 2021
76455
Xeon Platinum 8454H
Intel, January 2023
62530
EPYC 7443
AMD, March 2021
55901
Ryzen 9 7900
AMD, January 2023
48845