Ryzen 9 7900X3D vs EPYC 7642

VS

Aggregate performance score

EPYC 7642
2019
48 cores / 96 threads, 225 Watt
37.01
+16.6%
Ryzen 9 7900X3D
2023
12 cores / 24 threads, 120 Watt
31.74

EPYC 7642 outperforms Ryzen 9 7900X3D by a moderate 17% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7642 and Ryzen 9 7900X3D processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking91130
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.5549.27
Market segmentServerDesktop processor
SeriesAMD EPYCAMD Ryzen 9
Power efficiency15.5725.03
Architecture codenameZen 2 (2017−2020)Raphael (2023−2024)
Release date7 August 2019 (5 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$4,775$599

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 7900X3D has 788% better value for money than EPYC 7642.

Detailed specifications

EPYC 7642 and Ryzen 9 7900X3D 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)12 (Dodeca-Core)
Threads9624
Base clock speed2.4 GHz4.4 GHz
Boost clock speed3.4 GHz5.6 GHz
Multiplier23no data
L1 cache96K (per core)64K (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache256 MB (shared)128 MB (shared)
Chip lithography7 nm, 14 nm5 nm, 6 nm
Die size192 mm22x 71 mm2
Maximum case temperature (TCase)no data47 °C
Number of transistors4,800 million13,140 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on EPYC 7642 and Ryzen 9 7900X3D 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)1
SocketTR4AM5
Power consumption (TDP)225 Watt120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7642 and Ryzen 9 7900X3D. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7642 and Ryzen 9 7900X3D are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7642 and Ryzen 9 7900X3D. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Eight-channelDDR5-5200
Maximum memory size4 TiB128 GB
Max memory channels8no data
Maximum memory bandwidth204.763 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon Graphics

Peripherals

Specifications and connection of peripherals supported by EPYC 7642 and Ryzen 9 7900X3D.

PCIe versionno data5.0
PCI Express lanesno data24

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
+16.6%
Ryzen 9 7900X3D 31.74

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
+16.6%
Ryzen 9 7900X3D 50410

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 7642 1302
Ryzen 9 7900X3D 2858
+120%

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 7642 10239
Ryzen 9 7900X3D 17585
+71.7%

Gaming performance

Pros & cons summary


Performance score 37.01 31.74
Recency 7 August 2019 4 January 2023
Physical cores 48 12
Threads 96 24
Chip lithography 7 nm 5 nm
Power consumption (TDP) 225 Watt 120 Watt

EPYC 7642 has a 16.6% higher aggregate performance score, and 300% more physical cores and 300% more threads.

Ryzen 9 7900X3D, on the other hand, has an age advantage of 3 years, a 40% more advanced lithography process, and 87.5% lower power consumption.

The EPYC 7642 is our recommended choice as it beats the Ryzen 9 7900X3D in performance tests.

Be aware that EPYC 7642 is a server/workstation processor while Ryzen 9 7900X3D is a desktop one.


Should you still have questions on choice between EPYC 7642 and Ryzen 9 7900X3D, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD EPYC 7642
EPYC 7642
AMD Ryzen 9 7900X3D
Ryzen 9 7900X3D

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


4.6 11 votes

Rate EPYC 7642 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.2 427 votes

Rate Ryzen 9 7900X3D on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about EPYC 7642 or Ryzen 9 7900X3D, agree or disagree with our judgements, or report an error or mismatch.