Ryzen 9 7900X vs EPYC 7662

VS

Aggregate performance score

EPYC 7662
2020
64 cores / 128 threads, 225 Watt
45.51
+40%
Ryzen 9 7900X
2022
12 cores / 24 threads, 170 Watt
32.51

EPYC 7662 outperforms Ryzen 9 7900X by a considerable 40% based on our aggregate benchmark results.

Primary details

Comparing EPYC 7662 and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking43124
Place by popularitynot in top-100not in top-100
Market segmentServerDesktop processor
SeriesAMD EPYCno data
Power efficiency19.1418.10
Architecture codenameZen 2 (2017−2020)Raphael (Zen4) (2022−2023)
Release date19 February 2020 (4 years ago)27 September 2022 (2 years ago)

Detailed specifications

EPYC 7662 and Ryzen 9 7900X 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 cores64 (Tetrahexaconta-Core)12 (Dodeca-Core)
Threads12824
Base clock speed2 GHz4.7 GHz
Boost clock speed3.3 GHz5.6 GHz
Multiplier20no data
L1 cache4 MB64K (per core)
L2 cache32 MB1 MB (per core)
L3 cache256 MB64 MB (shared)
Chip lithography7 nm, 14 nm5 nm
Die sizeno data2x 70 (CCD) mm2 + 122 (I/O) mm2
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)no data47 °C
Number of transistorsno dataCCD: 6,5 Mrd + IOD: 3,4 Mrd Million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on EPYC 7662 and Ryzen 9 7900X 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 configurationno data1
SocketSocket SP3AM5
Power consumption (TDP)225 Watt170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7662 and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno data5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7662 and Ryzen 9 7900X are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7662 and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-3200DDR5-5200
Maximum memory size4 TiBno data
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 (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by EPYC 7662 and Ryzen 9 7900X.

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 7662 45.51
+40%
Ryzen 9 7900X 32.51

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 7662 72298
+40%
Ryzen 9 7900X 51640

Gaming performance

Pros & cons summary


Performance score 45.51 32.51
Recency 19 February 2020 27 September 2022
Physical cores 64 12
Threads 128 24
Chip lithography 7 nm 5 nm
Power consumption (TDP) 225 Watt 170 Watt

EPYC 7662 has a 40% higher aggregate performance score, and 433.3% more physical cores and 433.3% more threads.

Ryzen 9 7900X, on the other hand, has an age advantage of 2 years, a 40% more advanced lithography process, and 32.4% lower power consumption.

The EPYC 7662 is our recommended choice as it beats the Ryzen 9 7900X in performance tests.

Be aware that EPYC 7662 is a server/workstation processor while Ryzen 9 7900X is a desktop one.


Should you still have questions on choice between EPYC 7662 and Ryzen 9 7900X, ask them in Comments section, and we shall answer.

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AMD EPYC 7662
EPYC 7662
AMD Ryzen 9 7900X
Ryzen 9 7900X

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Community ratings

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Questions & comments

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