EPYC 7663 vs EPYC 7642

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Aggregate performance score

EPYC 7642
2019
48 cores / 96 threads, 225 Watt
37.01
EPYC 7663
2021
56 cores / 112 threads, 240 Watt
51.68
+39.6%

EPYC 7663 outperforms EPYC 7642 by a considerable 40% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7642 and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking9131
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.554.89
Market segmentServerServer
SeriesAMD EPYCAMD EPYC
Power efficiency15.5720.38
Architecture codenameZen 2 (2017−2020)Milan (2021−2023)
Release date7 August 2019 (5 years ago)12 January 2021 (3 years ago)
Launch price (MSRP)$4,775$6,366

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7642 has 13% better value for money than EPYC 7663.

Detailed specifications

EPYC 7642 and EPYC 7663 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)56 (Hexapentaconta-Core)
Threads96112
Base clock speed2.4 GHz2 GHz
Boost clock speed3.3 GHz3.5 GHz
Multiplier2320
L1 cache3 MB3584 KB
L2 cache24 MB28 MB
L3 cache256 MB (shared)256 MB (shared)
Chip lithography7 nm, 14 nm7 nm+
Die size192 mm28x 81 mm2
Number of transistors4,800 million33,200 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on EPYC 7642 and EPYC 7663 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 configuration2 (Multiprocessor)2
SocketTR4SP3
Power consumption (TDP)225 Watt240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7642 and EPYC 7663. You'll probably need this information if you require some particular technology.

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

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7642 and EPYC 7663 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7642 and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Eight-channelDDR4-3200
Maximum memory size4 TiB4 TiB
Max memory channels8no data
Maximum memory bandwidth204.763 GB/s204.795 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7642 and EPYC 7663.

PCIe versionno data4.0
PCI Express lanesno data128

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 7642 37.01
EPYC 7663 51.68
+39.6%

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 7642 58795
EPYC 7663 82087
+39.6%

Gaming performance

Pros & cons summary


Performance score 37.01 51.68
Recency 7 August 2019 12 January 2021
Physical cores 48 56
Threads 96 112
Power consumption (TDP) 225 Watt 240 Watt

EPYC 7642 has 6.7% lower power consumption.

EPYC 7663, on the other hand, has a 39.6% higher aggregate performance score, an age advantage of 1 year, and 16.7% more physical cores and 16.7% more threads.

The EPYC 7663 is our recommended choice as it beats the EPYC 7642 in performance tests.


Should you still have questions on choice between EPYC 7642 and EPYC 7663, ask them in Comments section, and we shall answer.

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AMD EPYC 7642
EPYC 7642
AMD EPYC 7663
EPYC 7663

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Community ratings

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


4.6 11 votes

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3.8 13 votes

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Questions & comments

Here you can ask a question about EPYC 7642 or EPYC 7663, agree or disagree with our judgements, or report an error or mismatch.