AMD EPYC 3451 vs AMD EPYC Embedded 3251

Comparative analysis of AMD EPYC 3451 and AMD EPYC Embedded 3251 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.

AMD EPYC 3451

AMD EPYC Embedded 3251

Differences

Reasons to consider the AMD EPYC 3451

8 more cores, run more applications at once: 16 vs 8
16 more threads: 32 vs 16
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 40% better performance in PassMark - CPU mark: 19532 vs 13912

Specifications (specs)
Number of cores	16 vs 8
Number of threads	32 vs 16
L1 cache	96K (per core) vs 768 KB
L2 cache	512K (per core) vs 4 MB
Benchmarks
PassMark - CPU mark	19532 vs 13912

Reasons to consider the AMD EPYC Embedded 3251

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 3% higher clock speed: 3.1 GHz vs 3 GHz
524288x more L3 cache, more data can be stored in the L3 cache for quick access later
2x lower typical power consumption: 50 Watt vs 100 Watt
Around 11% better performance in PassMark - Single thread mark: 1881 vs 1700

Specifications (specs)
Unlocked	Unlocked vs Locked
Maximum frequency	3.1 GHz vs 3 GHz
L3 cache	16 MB vs 32MB (shared)
Thermal Design Power (TDP)	50 Watt vs 100 Watt
Benchmarks
PassMark - Single thread mark	1881 vs 1700

Compare benchmarks

CPU 1: AMD EPYC 3451
CPU 2: AMD EPYC Embedded 3251

PassMark - Single thread mark

CPU 1

CPU 2

1700

1881

PassMark - CPU mark

CPU 1

CPU 2

19532

13912

Name	AMD EPYC 3451	AMD EPYC Embedded 3251
PassMark - Single thread mark	1700	1881
PassMark - CPU mark	19532	13912

Compare specifications (specs)

	AMD EPYC 3451	AMD EPYC Embedded 3251
Essentials
Architecture codename	Zen (Snowy Owl)	Zen
Launch date	21 Feb 2018	21 Feb 2018
Place in performance rating	1186	1187
Vertical segment		Server
Performance
Base frequency	2.15 GHz	2.5 GHz
Die size	2x 213 mm²	192 mm
L1 cache	96K (per core)	768 KB
L2 cache	512K (per core)	4 MB
L3 cache	32MB (shared)	16 MB
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	105°C
Maximum frequency	3 GHz	3.1 GHz
Number of cores	16	8
Number of threads	32	16
Transistor count	4,800 million	4800 million
Unlocked
64 bit support
Memory
ECC memory support
Supported memory types	DDR4-2666 MHz, Dual-channel	DDR4-2666
Max memory channels		2
Maximum memory bandwidth		39.74 GB/s
Maximum memory size		512 GB
Compatibility
Configurable TDP	80-100 W
Max number of CPUs in a configuration	1	1
Sockets supported	AMD BGA SP4r2
Thermal Design Power (TDP)	100 Watt	50 Watt
Peripherals
PCIe configurations	Gen 3, 64 Lanes, (CPU only)	x16, x8, x4, x2
Integrated LAN
Max number of PCIe lanes		32
PCI Express revision		3.0
Total number of SATA ports		8
USB revision		3.0
Virtualization
AMD Virtualization (AMD-V™)