AMD EPYC 7402 vs AMD EPYC 7351

Comparative analysis of AMD EPYC 7402 and AMD EPYC 7351 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD EPYC 7402

AMD EPYC 7351

Differences

Reasons to consider the AMD EPYC 7402

CPU is newer: launch date 2 year(s) 2 month(s) later
8 more cores, run more applications at once: 24 vs 16
16 more threads: 48 vs 32
Around 16% higher clock speed: 3.35 GHz vs 2.9 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm, 14 nm vs 14 nm
Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 11% better performance in PassMark - Single thread mark: 1931 vs 1747
2.5x better performance in PassMark - CPU mark: 62858 vs 25431

Specifications (specs)
Launch date	7 Aug 2019 vs June 2017
Number of cores	24 vs 16
Number of threads	48 vs 32
Maximum frequency	3.35 GHz vs 2.9 GHz
Manufacturing process technology	7 nm, 14 nm vs 14 nm
L2 cache	12 MB vs 512 KB (per core)
L3 cache	128 MB vs 64 MB
Benchmarks
PassMark - Single thread mark	1931 vs 1747
PassMark - CPU mark	62858 vs 25431

Reasons to consider the AMD EPYC 7351

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 6% lower typical power consumption: 155/170 Watt vs 180 Watt

Unlocked	Unlocked vs Locked
Thermal Design Power (TDP)	155/170 Watt vs 180 Watt

Compare benchmarks

CPU 1: AMD EPYC 7402
CPU 2: AMD EPYC 7351

PassMark - Single thread mark

CPU 1

CPU 2

1931

1747

PassMark - CPU mark

CPU 1

CPU 2

62858

25431

Name	AMD EPYC 7402	AMD EPYC 7351
PassMark - Single thread mark	1931	1747
PassMark - CPU mark	62858	25431
Geekbench 4 - Single Core		3547
Geekbench 4 - Multi-Core		23587

Compare specifications (specs)

	AMD EPYC 7402	AMD EPYC 7351
Essentials
Architecture codename	Zen 2	Zen
Launch date	7 Aug 2019	June 2017
Launch price (MSRP)	$1250
OPN PIB	100-100000048WOF
OPN Tray	100-000000048
Place in performance rating	389	227
Vertical segment	Server	Server
Family		AMD EPYC
Series		AMD EPYC 7000 Series
Performance
Base frequency	2.8 GHz	2.4 GHz
L1 cache	1.5 MB	96 KB (per core)
L2 cache	12 MB	512 KB (per core)
L3 cache	128 MB	64 MB
Manufacturing process technology	7 nm, 14 nm	14 nm
Maximum frequency	3.35 GHz	2.9 GHz
Number of cores	24	16
Number of threads	48	32
Unlocked
64 bit support
Die size		192 mm
Transistor count		4800 million
Memory
ECC memory support
Max memory channels	8	8
Maximum memory bandwidth	190.7 GB/s	307/341 GB/s
Maximum memory size	4 TB
Supported memory types	DDR4-3200	DDR4
Supported memory frequency		2400/2666 MHz
Compatibility
Max number of CPUs in a configuration	2	2
Sockets supported	SP3	TR4
Thermal Design Power (TDP)	180 Watt	155/170 Watt
Socket Count		1P/2P
Peripherals
Max number of PCIe lanes	128
PCI Express revision	4.0	x128
PCIe configurations	x16, x8
Advanced Technologies
AMD SenseMI
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)