Ryzen 5 3400G vs EPYC 7251

Primary details

Comparing EPYC 7251 and Ryzen 5 3400G processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	789	1092
Place by popularity	not in top-100	66
Cost-effectiveness evaluation	3.19	no data
Market segment	Server	Desktop processor
Series	AMD EPYC	AMD Ryzen 5
Architecture codename	Naples (2017−2018)	Picasso (2019−2022)
Release date	29 June 2017 (7 years ago)	12 June 2019 (5 years ago)
Launch price (MSRP)	$574	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7251 and Ryzen 5 3400G 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 cores	8 (Octa-Core)	4 (Quad-Core)
Threads	16	8
Base clock speed	2.1 GHz	3.7 GHz
Boost clock speed	2.9 GHz	4.2 GHz
Bus type	no data	PCIe 3.0
Multiplier	21	37
L1 cache	96K (per core)	384 KB
L2 cache	512K (per core)	2 MB
L3 cache	32 MB (shared)	4 MB (shared)
Chip lithography	14 nm	12 nm
Die size	192 mm2	210 mm2
Number of transistors	4,800 million	4940 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7251 and Ryzen 5 3400G 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 configuration	2 (Multiprocessor)	1 (Uniprocessor)
Socket	TR4	AM4
Power consumption (TDP)	120 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7251 and Ryzen 5 3400G. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7251 and Ryzen 5 3400G are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7251 and Ryzen 5 3400G. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4-2933
Maximum memory size	2 TiB	64 GB
Max memory channels	8	2
Maximum memory bandwidth	153.652 GB/s	46.933 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon RX Vega 11

Peripherals

Specifications and connection of peripherals supported by EPYC 7251 and Ryzen 5 3400G.

PCIe version	3.0	3.0
PCI Express lanes	128	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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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.

Pros & cons summary

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Performance score	9.78	6.06
Recency	29 June 2017	12 June 2019
Physical cores	8	4
Threads	16	8
Chip lithography	14 nm	12 nm
Power consumption (TDP)	120 Watt	65 Watt

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Should you still have questions on choice between EPYC 7251 and Ryzen 5 3400G, ask them in Comments section, and we shall answer.

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