AMD EPYC Embedded 3251 vs AMD EPYC 7281

Comparative analysis of AMD EPYC Embedded 3251 and AMD EPYC 7281 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 Embedded 3251

AMD EPYC 7281

Differences

Reasons to consider the AMD EPYC Embedded 3251

CPU is newer: launch date 8 month(s) later
Around 15% higher clock speed: 3.1 GHz vs 2.7 GHz
3.4x lower typical power consumption: 50 Watt vs 155/170 Watt
Around 16% better performance in PassMark - Single thread mark: 1881 vs 1626

Specifications (specs)
Launch date	21 Feb 2018 vs June 2017
Maximum frequency	3.1 GHz vs 2.7 GHz
Thermal Design Power (TDP)	50 Watt vs 155/170 Watt
Benchmarks
PassMark - Single thread mark	1881 vs 1626

Reasons to consider the AMD EPYC 7281

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
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 55% better performance in PassMark - CPU mark: 21621 vs 13912

Specifications (specs)
Number of cores	16 vs 8
Number of threads	32 vs 16
L1 cache	96 KB (per core) vs 768 KB
L2 cache	512 KB (per core) vs 4 MB
L3 cache	32 MB vs 16 MB
Max number of CPUs in a configuration	2 vs 1
Benchmarks
PassMark - CPU mark	21621 vs 13912

Compare benchmarks

CPU 1: AMD EPYC Embedded 3251
CPU 2: AMD EPYC 7281

PassMark - Single thread mark

CPU 1

CPU 2

1881

1626

PassMark - CPU mark

CPU 1

CPU 2

13912

21621

Name	AMD EPYC Embedded 3251	AMD EPYC 7281
PassMark - Single thread mark	1881	1626
PassMark - CPU mark	13912	21621

Compare specifications (specs)

	AMD EPYC Embedded 3251	AMD EPYC 7281
Essentials
Architecture codename	Zen	Zen
Launch date	21 Feb 2018	June 2017
Place in performance rating	1187	1190
Vertical segment	Server	Server
Family		AMD EPYC
Series		AMD EPYC 7000 Series
Performance
64 bit support
Base frequency	2.5 GHz	2.1 GHz
Die size	192 mm	192 mm
L1 cache	768 KB	96 KB (per core)
L2 cache	4 MB	512 KB (per core)
L3 cache	16 MB	32 MB
Manufacturing process technology	14 nm	14 nm
Maximum frequency	3.1 GHz	2.7 GHz
Number of cores	8	16
Number of threads	16	32
Transistor count	4800 million	4800 million
Unlocked
Memory
ECC memory support
Max memory channels	2	8
Maximum memory bandwidth	39.74 GB/s	307/341 GB/s
Maximum memory size	512 GB
Supported memory types	DDR4-2666	DDR4
Supported memory frequency		2400/2666 MHz
Compatibility
Max number of CPUs in a configuration	1	2
Thermal Design Power (TDP)	50 Watt	155/170 Watt
Socket Count		1P/2P
Sockets supported		TR4
Peripherals
Integrated LAN
Max number of PCIe lanes	32
PCI Express revision	3.0	x128
PCIe configurations	x16, x8, x4, x2
Total number of SATA ports	8
USB revision	3.0
Virtualization
AMD Virtualization (AMD-V™)