AMD Ryzen 9 5900 vs AMD EPYC 7351

Last updated: 2024-04-12

CPU comparison with benchmarks


AMD Ryzen 9 5900		AMD EPYC 7351
CPU comparison AMD Ryzen 9 5900 or AMD EPYC 7351 - 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 5900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 9 5900 was released in Q2/2021. The AMD EPYC 7351 has 16 cores with 32 threads and clocks with a maximum frequency of 2.90 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7351 was released in Q3/2017.

AMD Ryzen 9 (35)	Family	AMD EPYC (129)
AMD Ryzen 5000 (12)	CPU group	AMD EPYC 7001 (12)
4	Generation	1
Vermeer (Zen 3)	Architecture	Naples (Zen)
Desktop / Server	Segment	Desktop / Server
AMD Ryzen 9 3900	Predecessor	--
AMD Ryzen 9 7900	Successor	--

CPU Cores and Base Frequency The AMD Ryzen 9 5900 has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the AMD Ryzen 9 5900 is 3.00 GHz (4.70 GHz) while the AMD EPYC 7351 has 16 CPU cores and 32 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7351 is at 2.40 GHz (2.90 GHz).
AMD Ryzen 9 5900	Characteristic	AMD EPYC 7351
12	Cores	16
24	Threads	32
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	No
3.00 GHz	Frequency	2.40 GHz
4.70 GHz	Turbo Frequency (1 Core)	2.90 GHz
4.10 GHz	Turbo Frequency (All Cores)	2.90 GHz

Artificial Intelligence and Machine Learning Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
AMD Ryzen 9 5900	Characteristic	AMD EPYC 7351
--	AI hardware	--
--	AI specifications	--

Internal Graphics The AMD Ryzen 9 5900 or AMD EPYC 7351 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
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 5900 can use up to 128 GB of memory in 2 memory channels. The maximum memory bandwidth is 51.2 GB/s. The AMD EPYC 7351 supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 170.6 GB/s.
AMD Ryzen 9 5900	Characteristic	AMD EPYC 7351
DDR4-3200	Memory	DDR4-2400, DDR4-2666
128 GB	Max. Memory
2 (Dual Channel)	Memory channels	8 (Octa Channel)
51.2 GB/s	Max. Bandwidth	170.6 GB/s
Yes	ECC	Yes
6.00 MB	L2 Cache	--
64.00 MB	L3 Cache	64.00 MB
4.0	PCIe version	3.0
20	PCIe lanes	128
39.4 GB/s	PCIe Bandwidth	126.1 GB/s
Thermal Management The thermal design power (TDP for short) of the AMD Ryzen 9 5900 is 65 W, while the AMD EPYC 7351 has a TDP of 170 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
AMD Ryzen 9 5900	Characteristic	AMD EPYC 7351
65 W	TDP (PL1 / PBP)	170 W
--	TDP (PL2)	--
--	TDP up	--
--	TDP down	--
95 °C	Tjunction max.	--
Technical details The AMD Ryzen 9 5900 is manufactured in 7 nm and has 70.00 MB cache. The AMD EPYC 7351 is manufactured in 14 nm and has a 64.00 MB cache.
AMD Ryzen 9 5900	Characteristic	AMD EPYC 7351
7 nm	Technology	14 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	SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
AM4 (PGA 1331)	Socket	SP3
AMD-V, SVM	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Windows 11, Linux	Operating systems	Windows 10, Linux
Q2/2021	Release date	Q3/2017
--	Release price	850 $

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AMD Ryzen 9 5900 12C 24T @ 3.00 GHz (4.70 GHz) buy now on Amazon and save! AMD EPYC 7351 16C 32T @ 2.40 GHz (2.90 GHz) buy now on Amazon and save!

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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks

AMD Ryzen 9 5900 (100%)

AMD EPYC 7351 (36%)

⌀ Multi core performance in 4 CPU benchmarks

AMD Ryzen 9 5900 (100%)

AMD EPYC 7351 (47%)

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 5900 12C 24T @ 4.10 GHz	20955 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	17401 (83%)

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 5900 12C 24T @ 4.70 GHz	1688 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	634 (38%)

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 5900 12C 24T @ 4.10 GHz	13874 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	2002 (14%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.


	AMD Ryzen 9 5900 12C 24T @ 4.70 GHz	2130 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	717 (34%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.


	AMD Ryzen 9 5900 12C 24T @ 4.10 GHz	9740 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	2022 (21%)

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 5900 12C 24T @ 4.10 GHz	34570 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	23569 (68%)

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 5900 12C 24T @ 4.70 GHz	1622 (100%)
	AMD EPYC 7351 16C 32T @ 2.90 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 5900 12C 24T @ 4.70 GHz	0 (0%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	296 (100%)

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 5900 12C 24T @ 4.10 GHz	0 (0%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	4728 (100%)

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 5900 12C 24T @ 3.00 GHz	7746 (100%)
	AMD EPYC 7351 16C 32T @ 2.40 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 5900 12C 24T @ 4.70 GHz	0 (0%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	128 (100%)

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 5900 12C 24T @ 4.10 GHz	0 (0%)
	AMD EPYC 7351 16C 32T @ 2.90 GHz	2184 (100%)

Devices using this processor
AMD Ryzen 9 5900	AMD EPYC 7351
Unknown	Unknown

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