EPYC 7401 vs Ryzen 7 1700X

Primary details

Comparing Ryzen 7 1700X and EPYC 7401 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	778	106
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.55	9.15
Market segment	Desktop processor	Server
Series	AMD Ryzen 7	AMD EPYC
Power efficiency	9.82	19.37
Architecture codename	Zen (2017−2020)	Naples (2017−2018)
Release date	2 March 2017 (7 years ago)	29 June 2017 (7 years ago)
Launch price (MSRP)	$399	$1,850

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7401 has 158% better value for money than Ryzen 7 1700X.

Detailed specifications

Ryzen 7 1700X and EPYC 7401 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)	24 (Tetracosa-Core)
Threads	16	48
Base clock speed	3.4 GHz	2 GHz
Boost clock speed	3.8 GHz	3 GHz
Bus rate	4 × 8 GT/s	no data
Multiplier	34	20
L1 cache	768 KB	96K (per core)
L2 cache	4096 KB	512K (per core)
L3 cache	16384 KB	64 MB (shared)
Chip lithography	14 nm	14 nm
Die size	192 mm2	192 mm2
Number of transistors	4,800 million	4,800 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	+

Compatibility

Information on Ryzen 7 1700X and EPYC 7401 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	1 (Uniprocessor)	2 (Multiprocessor)
Socket	AM4	TR4
Power consumption (TDP)	95 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 1700X and EPYC 7401. You'll probably need this information if you require some particular technology.

Instruction set extensions	XFR, FMA3, SSE 4.2, AVX2, SMT	no data
AES-NI	+	+
FMA	FMA3	-
AVX	+	+
XFR	+	-
SenseMI	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 1700X and EPYC 7401 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 1700X and EPYC 7401. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4 Eight-channel
Maximum memory size	64 GB	2 TiB
Max memory channels	2	8
Maximum memory bandwidth	42.671 GB/s	170.671 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 1700X and EPYC 7401.

PCIe version	n/a	3.0
PCI Express lanes	20	128

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.

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Pros & cons summary

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Performance score	9.86	34.80
Recency	2 March 2017	29 June 2017
Physical cores	8	24
Threads	16	48
Power consumption (TDP)	95 Watt	170 Watt

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Should you still have questions on choice between Ryzen 7 1700X and EPYC 7401, ask them in Comments section, and we shall answer.

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