AMD EPYC 7401: specs and benchmarks

Summary

AMD started EPYC 7401 sales 29 June 2017 at a recommended price of $1,850. This is a Naples architecture desktop processor primarily aimed at professional systems. It has 24 cores and 48 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 3000 MHz and an unlocked multiplier.

Compatibility-wise, this is AMD Socket TR4 processor with a TDP of 170 Watt. It supports DDR4 Eight-channel memory.

General info

EPYC 7401 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking	84
Place by popularity	not in top-100
Value for money	48.04
Market segment	Server
Series	AMD EPYC
Architecture codename	Naples (2017−2018)
Release date	29 June 2017 (6 years old)
Launch price (MSRP)	$1,850	of 305 (Core i7-870)
Current price	$509 (0.3x MSRP)	of 17802 (Threadripper PRO 7995WX)

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	24 (Tetracosa-Core)
Threads	48
Base clock speed	2 GHz	of 4.7 (FX-9590)
Boost clock speed	3 GHz	of 6.2 (Core i9-14900KS)
L1 cache	96K (per core)	of 7475.2 (Apple M2 Pro 10-Core)
L2 cache	512K (per core)	of 36864 (Apple M2 Max)
L3 cache	64 MB (shared)	of 768 (EPYC 7373X)
Chip lithography	14 nm	of 3 (Apple M3 Max 16-Core)
Die size	192 mm2
Number of transistors	4,800 million	of 9900000 (Ryzen 5 7645HX)
64 bit support	+
Windows 11 compatibility	-
Unlocked multiplier	Yes

Compatibility

Information on EPYC 7401 compatibility with other computer components and devices: 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)	of 8 (Opteron 842)
Socket	TR4
Power consumption (TDP)	170 Watt	of 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by EPYC 7401. You'll probably need this information if you require some particular technology.

AES-NI	+
AVX	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V

+

Memory specs

Types, maximum amount and channel number of RAM supported by EPYC 7401's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4 Eight-channel
Maximum memory size	2 TiB	of 786 (Xeon E5-2670 v3)
Max memory channels	8	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	170.671 GB/s	of 460.8 (EPYC 9124)
ECC memory support	+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5 (Core i9-12900K)
PCI Express lanes	128

Benchmark performance

Single-core and multi-core benchmark results of EPYC 7401. Overall benchmark performance 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.

Relative perfomance

Overall EPYC 7401 performance compared to nearest competitors among server CPUs.

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