AMD EPYC 7402P vs AMD EPYC 7451

Comparative analysis of AMD EPYC 7402P and AMD EPYC 7451 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.

AMD EPYC 7402P

AMD EPYC 7451

Differences

Reasons to consider the AMD EPYC 7402P

CPU is newer: launch date 2 year(s) 2 month(s) later
Around 5% higher clock speed: 3.35 GHz vs 3.2 GHz
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm, 14 nm vs 14 nm
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 1% better performance in PassMark - Single thread mark: 1970 vs 1948

Specifications (specs)
Launch date	7 Aug 2019 vs June 2017
Maximum frequency	3.35 GHz vs 3.2 GHz
Manufacturing process technology	7 nm, 14 nm vs 14 nm
L3 cache	128 MB vs 64 MB
Benchmarks
PassMark - Single thread mark	1970 vs 1948

Reasons to consider the AMD EPYC 7451

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 50% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 20% better performance in PassMark - CPU mark: 51778 vs 43091

Specifications (specs)
Unlocked	Unlocked vs Locked
L1 cache	96 KB (per core) vs 1.5 MB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	51778 vs 43091

Compare benchmarks

CPU 1: AMD EPYC 7402P
CPU 2: AMD EPYC 7451

PassMark - Single thread mark

CPU 1

CPU 2

1970

1948

PassMark - CPU mark

CPU 1

CPU 2

43091

51778

Name	AMD EPYC 7402P	AMD EPYC 7451
PassMark - Single thread mark	1970	1948
PassMark - CPU mark	43091	51778

Compare specifications (specs)

	AMD EPYC 7402P	AMD EPYC 7451
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	605	519
Vertical segment	Server	Server
Family		AMD EPYC
Series		AMD EPYC 7000 Series
Performance
Base frequency	2.8 GHz	2.3 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	3.2 GHz
Number of cores	24	24
Number of threads	48	48
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	341 GB/s
Maximum memory size	4 TB
Supported memory types	DDR4-3200	DDR4
Supported memory frequency		2666 MHz
Compatibility
Max number of CPUs in a configuration	1	2
Sockets supported	SP3	TR4
Thermal Design Power (TDP)	180 Watt	180 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™)