Ryzen 9 7950X vs EPYC 7551

VS

Aggregate performance score

EPYC 7551
2017
32 cores / 64 threads, 180 Watt
16.34
Ryzen 9 7950X
2022
16 cores / 32 threads, 170 Watt
39.47
+142%

Ryzen 9 7950X outperforms EPYC 7551 by a whopping 142% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7551 and Ryzen 9 7950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking40066
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.23no data
Market segmentServerDesktop processor
SeriesAMD EPYCno data
Power efficiency8.5921.97
Architecture codenameNaples (2017−2018)Raphael (Zen 4) (2022)
Release date29 June 2017 (7 years ago)27 September 2022 (2 years ago)
Launch price (MSRP)$3,400no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

EPYC 7551 and Ryzen 9 7950X 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 cores32 (Dotriaconta-Core)16 (Hexadeca-Core)
Threads6432
Base clock speed2 GHz4.5 GHz
Boost clock speed3 GHz5.7 GHz
Multiplier20no data
L1 cache96K (per core)64K (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache64 MB (shared)64 MB (shared)
Chip lithography14 nm5 nm
Die size192 mm2CCD = 2x 70 sq. mm, I/O = 122 mm2
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)no data47 °C
Number of transistors4,800 million13140 Million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on EPYC 7551 and Ryzen 9 7950X 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)180 Watt170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7551 and Ryzen 9 7950X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataCCD = 5 nm, I/O = 6 nm, 0.650 - 1.475 V
AES-NI++
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7551 and Ryzen 9 7950X are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7551 and Ryzen 9 7950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Eight-channelDDR5-5200
Maximum memory size2 TiBno data
Max memory channels8no data
Maximum memory bandwidth170.671 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon Graphics (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by EPYC 7551 and Ryzen 9 7950X.

PCIe version3.05.0
PCI Express lanes12824

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 7551 16.34
Ryzen 9 7950X 39.47
+142%

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 7551 25960
Ryzen 9 7950X 62701
+142%

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 7551 897
Ryzen 9 7950X 2985
+233%

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 7551 5764
Ryzen 9 7950X 19454
+238%

Gaming performance

Pros & cons summary


Performance score 16.34 39.47
Recency 29 June 2017 27 September 2022
Physical cores 32 16
Threads 64 32
Chip lithography 14 nm 5 nm
Power consumption (TDP) 180 Watt 170 Watt

EPYC 7551 has 100% more physical cores and 100% more threads.

Ryzen 9 7950X, on the other hand, has a 141.6% higher aggregate performance score, an age advantage of 5 years, a 180% more advanced lithography process, and 5.9% lower power consumption.

The Ryzen 9 7950X is our recommended choice as it beats the EPYC 7551 in performance tests.

Be aware that EPYC 7551 is a server/workstation processor while Ryzen 9 7950X is a desktop one.


Should you still have questions on choice between EPYC 7551 and Ryzen 9 7950X, ask them in Comments section, and we shall answer.

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AMD EPYC 7551
EPYC 7551
AMD Ryzen 9 7950X
Ryzen 9 7950X

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Community ratings

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Questions & comments

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