EPYC 9454P vs EPYC 7643

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Aggregate performance score

EPYC 7643
2021
48 cores / 96 threads, 225 Watt
49.69
EPYC 9454P
2022
48 cores / 96 threads, 290 Watt
62.68
+26.1%

EPYC 9454P outperforms EPYC 7643 by a significant 26% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7643 and EPYC 9454P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3814
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation6.329.02
Market segmentServerServer
SeriesAMD EPYCAMD EPYC
Power efficiency20.1419.71
Architecture codenameMilan (2021−2023)Genoa (2022−2023)
Release date12 January 2021 (3 years ago)10 November 2022 (1 year ago)
Launch price (MSRP)$4,995$4,598

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 9454P has 43% better value for money than EPYC 7643.

Detailed specifications

EPYC 7643 and EPYC 9454P basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores48 (Octatetraconta-Core)48 (Octatetraconta-Core)
Threads9696
Base clock speed2.3 GHz2.75 GHz
Boost clock speed3.6 GHz2.75 GHz
Multiplier2327.5
L1 cache3 MB3 MB
L2 cache24 MB48 MB
L3 cache256 MB (shared)256 MB (shared)
Chip lithography7 nm+5 nm, 6 nm
Die size8x 81 mm28x 72 mm2
Number of transistors33,200 million52,560 million
64 bit support++
Windows 11 compatibility+no data

Compatibility

Information on EPYC 7643 and EPYC 9454P compatibility with other computer components: 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. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration21
SocketSP3SP5
Power consumption (TDP)225 Watt290 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7643 and EPYC 9454P. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7643 and EPYC 9454P are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7643 and EPYC 9454P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5-4800
Maximum memory size4 TiB6 TiB
Maximum memory bandwidth204.795 GB/s460.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/Ano data

Peripherals

Specifications and connection of peripherals supported by EPYC 7643 and EPYC 9454P.

PCIe version4.05.0
PCI Express lanes128128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark 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.

EPYC 7643 49.69
EPYC 9454P 62.68
+26.1%

Passmark

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

EPYC 7643 76050
EPYC 9454P 95918
+26.1%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

EPYC 7643 1237
EPYC 9454P 1963
+58.7%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

EPYC 7643 11421
EPYC 9454P 18796
+64.6%

Gaming performance

Pros & cons summary


Performance score 49.69 62.68
Recency 12 January 2021 10 November 2022
Chip lithography 7 nm 5 nm
Power consumption (TDP) 225 Watt 290 Watt

EPYC 7643 has 28.9% lower power consumption.

EPYC 9454P, on the other hand, has a 26.1% higher aggregate performance score, an age advantage of 1 year, and a 40% more advanced lithography process.

The EPYC 9454P is our recommended choice as it beats the EPYC 7643 in performance tests.


Should you still have questions on choice between EPYC 7643 and EPYC 9454P, ask them in Comments section, and we shall answer.

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AMD EPYC 7643
EPYC 7643
AMD EPYC 9454P
EPYC 9454P

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


1.2 232 votes

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3.4 10 votes

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Questions & comments

Here you can ask a question about EPYC 7643 or EPYC 9454P, agree or disagree with our judgements, or report an error or mismatch.