AMD EPYC 7643: specs and benchmarks

AMD EPYC 7643

Summary

AMD started AMD EPYC 7643 sales 15 March 2021. This is high-end Milan architecture desktop processor primarily aimed at professional systems. It has 48 cores and 96 threads, and is based on 7 nm manufacturing technology, with a max turbo frequency of 3600 MHz and an unlocked multiplier.

Compatibility-wise, this is AMD Socket SP3 processor with a TDP of 225 Watt. It supports DDR4-3200 memory.

It provides outstanding benchmark performance at 87.93 percent of a leader's which is AMD EPYC 7763.

General info

Of EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in our rating
 
Market segment
Server
 
Architecture codename
Milan
 
Launch date
15 March 2021 (recently)
 

Technical specs

Basic processor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores
48
 
Threads
96
 
Base clock speed
2.3 GHz
 
of 4.7 (FX-9590)
Boost clock speed
3.6 GHz
 
L1 cache
96K (per core)
 
of 896 (Atom C3950)
L2 cache
512K (per core)
 
L3 cache
256 MB (shared)
 
Chip lithography
7 nm
 
of 5 (Apple M1)
64 bit support
-
 
Unlocked multiplier
+
 

Compatibility

Information on EPYC 7643 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one.

Number of CPUs in a configuration
2
 
Socket
SP3
 
Thermal design power (TDP)
225 Watt
 

Technologies and extensions

Technological capabilities and additional instructions supported by EPYC 7643. You'll probably need this information if you require some particular technology.

AES-NI
+
 
AVX
+
 

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V
+
 

Memory specs

Types, maximum amount and channel number of RAM supported by EPYC 7643's memory controller.

Supported memory types
DDR4-3200
 
of 4266 (Ryzen 9 4900H)

Benchmark performance

Single-core and multi-core benchmark results of EPYC 7643. Overall benchmark performance is measured in points in 0-100 range, higher is better.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

87.93

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different tests, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario.

77101

Game benchmarks

Let's see how good EPYC 7643 is for a gaming PC, compared with system requirements of some popular titles. Remember that sometimes official hardware requirements may reflect real performance inaccurately.

User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.

Advices and comments

Here you can ask a question about EPYC 7643, agree or disagree with our judgements, or report an error or mismatch.