AMD EPYC 7451 vs AMD EPYC 7551

Comparative analysis of AMD EPYC 7451 and AMD EPYC 7551 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

AMD EPYC 7451

AMD EPYC 7551

Differences

Reasons to consider the AMD EPYC 7451

Around 7% higher clock speed: 3.2 GHz vs 3 GHz
Around 12% better performance in PassMark - Single thread mark: 1948 vs 1742

Specifications (specs)
Maximum frequency	3.2 GHz vs 3 GHz
Benchmarks
PassMark - Single thread mark	1948 vs 1742

Reasons to consider the AMD EPYC 7551

8 more cores, run more applications at once: 32 vs 24
16 more threads: 64 vs 48
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 9% better performance in PassMark - CPU mark: 56671 vs 51778

Specifications (specs)
Number of cores	32 vs 24
Number of threads	64 vs 48
L1 cache	96 KB (per core) vs 96 KB (per core)
L2 cache	512 KB (per core) vs 512 KB (per core)
Benchmarks
PassMark - CPU mark	56671 vs 51778

Compare benchmarks

CPU 1: AMD EPYC 7451
CPU 2: AMD EPYC 7551

PassMark - Single thread mark

CPU 1

CPU 2

1948

1742

PassMark - CPU mark

CPU 1

CPU 2

51778

56671

Name	AMD EPYC 7451	AMD EPYC 7551
PassMark - Single thread mark	1948	1742
PassMark - CPU mark	51778	56671
Geekbench 4 - Single Core		2956
Geekbench 4 - Multi-Core		20125

Compare specifications (specs)

	AMD EPYC 7451	AMD EPYC 7551
Essentials
Architecture codename	Zen	Zen
Family	AMD EPYC	AMD EPYC
Launch date	June 2017	June 2017
Place in performance rating	518	232
Series	AMD EPYC 7000 Series	AMD EPYC 7000 Series
Vertical segment	Server	Server
Price now		$3,813.99
Value for money (0-100)		1.43
Performance
64 bit support
Base frequency	2.3 GHz	2 GHz
Die size	192 mm	192 mm
L1 cache	96 KB (per core)	96 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
L3 cache	64 MB	64 MB
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.2 GHz	3 GHz
Number of cores	24	32
Number of threads	48	64
Transistor count	4800 million	4800 million
Unlocked
Memory
Max memory channels	8	8
Maximum memory bandwidth	341 GB/s	341 GB/s
Supported memory frequency	2666 MHz	2666 MHz
Supported memory types	DDR4	DDR4
Compatibility
Max number of CPUs in a configuration	2	2
Socket Count	1P/2P	1P/2P
Sockets supported	TR4	TR4
Thermal Design Power (TDP)	180 Watt	180 Watt
Peripherals
PCI Express revision	x128	x128
Virtualization
AMD Virtualization (AMD-V™)