EPYC 7742 vs Ryzen 7 3800X

VS

Aggregate performance score

Ryzen 7 3800X
2019
8 cores / 16 threads, 105 Watt
14.56
EPYC 7742
2019
64 cores / 128 threads, 225 Watt
44.07
+203%

EPYC 7742 outperforms Ryzen 7 3800X by a whopping 203% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 3800X and EPYC 7742 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking49645
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation16.443.55
Market segmentDesktop processorServer
SeriesAMD Ryzen 7AMD EPYC
Power efficiency13.1218.54
Architecture codenameMatisse (2019−2020)Zen 2 (2017−2020)
Release date27 May 2019 (5 years ago)7 August 2019 (5 years ago)
Launch price (MSRP)$399$6,950

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 7 3800X has 363% better value for money than EPYC 7742.

Detailed specifications

Ryzen 7 3800X and EPYC 7742 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 cores8 (Octa-Core)64 (Tetrahexaconta-Core)
Threads16128
Base clock speed3.9 GHz2.25 GHz
Boost clock speed4.5 GHz3.4 GHz
Multiplierno data22.5
L1 cache512 KB4 MB
L2 cache4 MB32 MB
L3 cache32 MB256 MB (shared)
Chip lithography7 nm, 12 nm7 nm, 14 nm
Die sizeno data192 mm2
Number of transistors19,200 million4,800 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 7 3800X and EPYC 7742 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 configuration1 (Uniprocessor)2 (Multiprocessor)
SocketAM4TR4
Power consumption (TDP)105 Watt225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 3800X and EPYC 7742. 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 Ryzen 7 3800X and EPYC 7742 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 3800X and EPYC 7742. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Dual-channelDDR4 Eight-channel
Maximum memory size128 GB4 TiB
Max memory channels28
Maximum memory bandwidth51.196 GB/s204.763 GB/s
ECC memory support-+

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.

Ryzen 7 3800X 14.56
EPYC 7742 44.07
+203%

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.

Ryzen 7 3800X 23125
EPYC 7742 70007
+203%

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.

Ryzen 7 3800X 1702
+34.8%
EPYC 7742 1263

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.

Ryzen 7 3800X 8223
EPYC 7742 12501
+52%

Gaming performance

Pros & cons summary


Performance score 14.56 44.07
Recency 27 May 2019 7 August 2019
Physical cores 8 64
Threads 16 128
Power consumption (TDP) 105 Watt 225 Watt

Ryzen 7 3800X has 114.3% lower power consumption.

EPYC 7742, on the other hand, has a 202.7% higher aggregate performance score, an age advantage of 2 months, and 700% more physical cores and 700% more threads.

The EPYC 7742 is our recommended choice as it beats the Ryzen 7 3800X in performance tests.

Note that Ryzen 7 3800X is a desktop processor while EPYC 7742 is a server/workstation one.


Should you still have questions on choice between Ryzen 7 3800X and EPYC 7742, ask them in Comments section, and we shall answer.

Vote for your favorite

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AMD Ryzen 7 3800X
Ryzen 7 3800X
AMD EPYC 7742
EPYC 7742

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Community ratings

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


4.5 1756 votes

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4.3 129 votes

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Questions & comments

Here you can ask a question about Ryzen 7 3800X or EPYC 7742, agree or disagree with our judgements, or report an error or mismatch.