EPYC 7443P vs EPYC 7401P

Primary details

Comparing EPYC 7401P and EPYC 7443P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	339	102
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.86	24.35
Market segment	Server	Server
Series	AMD EPYC	AMD EPYC
Power efficiency	10.00	16.97
Architecture codename	Naples (2017−2018)	Milan (2021−2023)
Release date	20 June 2017 (7 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	$1,075	$1,337

Cost-effectiveness evaluation

Performance per price, higher is better.

EPYC 7443P has 401% better value for money than EPYC 7401P.

Detailed specifications

EPYC 7401P and EPYC 7443P 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	24 (Tetracosa-Core)	24 (Tetracosa-Core)
Threads	48	48
Base clock speed	2 GHz	2.85 GHz
Boost clock speed	2 GHz	4 GHz
Multiplier	20	28.5
L1 cache	2.25 MB	1536 KB
L2 cache	12 MB	12 MB
L3 cache	64 MB (shared)	128 MB (shared)
Chip lithography	14 nm	7 nm+
Die size	213 mm2	4x 81 mm2
Number of transistors	19200 Million	16,600 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7401P and EPYC 7443P 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)	1
Socket	TR4	SP3
Power consumption (TDP)	155 W, 170 Watt	200 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7401P and EPYC 7443P. 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 7401P and EPYC 7443P are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7401P and EPYC 7443P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4-3200
Maximum memory size	2 TiB	4 TiB
Max memory channels	8	no data
Maximum memory bandwidth	170.671 GB/s	204.795 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7401P and EPYC 7443P.

PCIe version	3.0	4.0
PCI Express lanes	128	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	17.97	35.86
Recency	20 June 2017	12 January 2021
Chip lithography	14 nm	7 nm
Power consumption (TDP)	155 Watt	200 Watt

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Should you still have questions on choice between EPYC 7401P and EPYC 7443P, ask them in Comments section, and we shall answer.

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