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AMD Ryzen 9 5900X vs AMD EPYC 9965

Last updated: 2025-05-13

CPU comparison with benchmarks


AMD Ryzen 9 5900X		AMD EPYC 9965
CPU comparison AMD Ryzen 9 5900X or AMD EPYC 9965 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results. The AMD Ryzen 9 5900X has 12 cores with 24 threads and clocks with a maximum frequency of 4.80 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 5900X was released in Q4/2020. The AMD EPYC 9965 has 192 cores with 384 threads and clocks with a maximum frequency of 3.70 GHz. The CPU supports up to 6144 GB of memory in 12 memory channels. The AMD EPYC 9965 was released in Q4/2024.

AMD Ryzen 9 (47)	Family	AMD EPYC (146)
AMD Ryzen 5000 (16)	CPU group	AMD EPYC 9005 (29)
4	Generation	5
Vermeer (Zen 3)	Architecture	Turin (Zen 5 / Zen 5c)
Desktop	Segment	Server
AMD Ryzen 9 3900X	Predecessor	--
AMD Ryzen 9 7900X	Successor	--

CPU Cores and Base Frequency The AMD Ryzen 9 5900X is a 12 core processor with a clock frequency of 3.70 GHz (4.80 GHz). The AMD EPYC 9965 has 192 CPU cores with a clock frequency of 2.25 GHz (3.70 GHz).
AMD Ryzen 9 5900X	Characteristic	AMD EPYC 9965
12	Cores	192
24	Threads	384
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	No
3.70 GHz	Frequency	2.25 GHz
4.80 GHz	Turbo Frequency (1 Core)	3.70 GHz
4.50 GHz	Turbo Frequency (All Cores)	3.35 GHz


NPU AI performance The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
AMD Ryzen 9 5900X	Characteristic	AMD EPYC 9965
--	AI hardware	--
--	AI specifications	--
--	NPU + CPU + iGPU	--

Integrated graphics (iGPU) The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
no iGPU	GPU	no iGPU
	GPU frequency	--
--	GPU (Turbo)	--
--	GPU Generation	--
	Technology
	Max. displays
--	Compute units	--
--	Shader	--
No	Hardware Raytracing	No
No	Frame Generation	No
--	Max. GPU Memory	--
--	DirectX Version	--

Hardware codec support A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
no iGPU	GPU	no iGPU
No	Codec h265 / HEVC (8 bit)	No
No	Codec h265 / HEVC (10 bit)	No
No	Codec h264	No
No	Codec VP9	No
No	Codec VP8	No
No	Codec AV1	No
No	Codec AVC	No
No	Codec VC-1	No
No	Codec JPEG	No

Memory & PCIe The AMD Ryzen 9 5900X supports a maximum of 128 GB of memory in 2 memory channels. The AMD EPYC 9965 can connect up to 6144 GB of memory in 12 memory channels.
AMD Ryzen 9 5900X	Characteristic	AMD EPYC 9965
DDR4-3200	Memory	DDR5-6000
128 GB	Max. Memory	6144 GB
2 (Dual Channel)	Memory channels	12
51.2 GB/s	Max. Bandwidth	576.0 GB/s
Yes	ECC	Yes
6.00 MB	L2 Cache	--
64.00 MB	L3 Cache	384.00 MB
4.0	PCIe version	5.0
20	PCIe lanes	128
39.4 GB/s	PCIe Bandwidth	504.1 GB/s
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 9 5900X has a TDP of 105 W, that of the AMD EPYC 9965 is 500 W.
AMD Ryzen 9 5900X	Characteristic	AMD EPYC 9965
105 W	TDP (PL1 / PBP)	500 W
142 W	TDP (PL2)	--
--	TDP up	500 W
--	TDP down	450 W
90 °C	Tjunction max.	100 °C
Technical details The AMD Ryzen 9 5900X has a 70.00 MB cache, while the AMD EPYC 9965 cache has a total of 384.00 MB.

AMD Ryzen 9 5900X	Characteristic	AMD EPYC 9965
7 nm	Technology	4 nm
Chiplet	Chip design	Chiplet
x86-64 (64 bit)	Instruction set (ISA)	x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3	ISA extensions	SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI
AM4 (PGA 1331)	Socket	SP5
AMD-V, SVM	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows Server 2022, Linux, Windows 11
Q4/2020	Release date	Q4/2024
549 $	Release price	14813 $

show more data		show more data

AMD Ryzen 9 5900X 12C 24T @ 3.70 GHz (4.80 GHz) buy now on Amazon and save! AMD EPYC 9965 192C 384T @ 2.25 GHz (3.70 GHz) buy now on Amazon and save!

Rate these processors

Cinebench 2024 Single-Core

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	98 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Cinebench 2024 Multi-Core

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	1189 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Cinebench R23 Single-Core

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	1636 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Cinebench R23 Multi-Core

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	21878 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

Geekbench 6 Single-Core

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	2199 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Geekbench 6 Multi-Core

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	12420 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

Geekbench 5, 64bit Single-Core

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	1727 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Geekbench 5, 64bit Multi-Core

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	14515 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

Cinebench R20 Single-Core

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	637 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Cinebench R20 Multi-Core

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	8491 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	308 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	39294 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

CPU-Z Benchmark 17 Single-Core

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	647 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

CPU-Z Benchmark 17 Multi-Core

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	AMD Ryzen 9 5900X 12C 24T @ 3.70 GHz	9520 (100%)
	AMD EPYC 9965 192C 384T @ 2.25 GHz	0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.


	AMD Ryzen 9 5900X 12C 24T @ 4.80 GHz	270 (100%)
	AMD EPYC 9965 192C 384T @ 3.70 GHz	0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.


	AMD Ryzen 9 5900X 12C 24T @ 4.50 GHz	3684 (100%)
	AMD EPYC 9965 192C 384T @ 3.35 GHz	0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.


	AMD Ryzen 9 5900X 21,878 CB R23 MC @ 131 W	167 (100%)
	AMD EPYC 9965 2.25 GHz	0 (0%)

Devices using this processor
AMD Ryzen 9 5900X	AMD EPYC 9965
Unknown	Unknown

News and articles for the AMD Ryzen 9 5900X and the AMD EPYC 9965

Why the new AMD Ryzen 7000 processors for the AM5 socket are currently not a good deal

Posted by Stefan on 2022-10-11

At the end of September 2022, the time had come: AMD presented its latest desktop processors called AMD Ryzen 7000. Initially, 4 processors with 6 to 16 CPU cores were released.

The new socket AM5 (LGA 1718) is used for the first time, which is intended to replace the very durable socket AM4 introduced in 2017 as AMDs mainstream platform. This includes (depending on the chipset) PCIe 5.0 support as well as the exclusive use of DDR5 memory on all AM5 mainboards.

Officially, DDR5-5200 is the maximum, but with AMDs EXPO Technology which is similar to Intel's XMP 3.0, AMD now also has a solution for easy overclocking of the main memory. AMD itself names DDR5-6000 as the sweet spot for the new AMD Ryzen 7000 processors.

Most popular processors in the first half of 2022

Posted by Stefan on 2022-07-05

In the past we had repeatedly written about our most popular processors. Since this format was quiet popular, I would like to continue this today and introduce you the most popular processors in the first half of 2022.

With more than 2 million page views per month, CPU-Monkey is one of the biggest comparison sites for processors and is currently available in 16 languages.

AMD Ryzen 5 7600X and AMD Ryzen 7 7800X are coming in September

Posted by Stefan on 2022-06-20

After we published a performance assessment of the AMD Ryzen 9 7950X last week, the well-known AMD leaker Greymon55 has now posted more informations via Twitter.

He predicts the first four models of the new Zen 4 desktop generation, which AMD would like to present at the end of 2022. There is also an alleged release date of September 15, 2022.

AMD Ryzen 9 7950X - Cinebench R23 Benchmark projection

Posted by Stefan on 2022-06-10

We give you a preview of AMD's new Zen 4 desktop processors and calculate the performance of the AMD Ryzen 9 7950X top model for the new AM5 socket. The performance data and other technical details come directly from the press kit that AMD released as part of its Financial Analyst Day on June 9, 2022.

Up to 15 percent more single-core performance and 35 percent more multi-core performance of the 16-core model are realistic !

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