AMD EPYC 7281 vs AMD EPYC 7251

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CPU comparison with benchmarks

-VS-

CPU lineage

AMD EPYC 7281 or AMD EPYC 7281 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The AMD EPYC 7281 features 16 processor cores and has the capability to manage 32 threads concurrently.
It was released in Q3/2017 and belongs to the 1 generation of the AMD EPYC series.
To use the AMD EPYC 7281, you'll need a motherboard with a SP3 socket.
The AMD EPYC 7251 features 8 processor cores and has the capability to manage 16 threads concurrently.
To use the AMD EPYC 7251, you'll need a motherboard with a SP3 socket.
AMD EPYC 7001 Group AMD EPYC 7001
1 Generation 1
Desktop / Server Segment Desktop / Server
AMD EPYC 7281 Name AMD EPYC 7251
AMD EPYC Family AMD EPYC
 
 

CPU Cores and Base Frequency

The AMD EPYC 7281 has 16 CPU cores and can calculate 32 threads in parallel.
The clock frequency of the AMD EPYC 7281 is 2.2 GHz
and turbo frequency for one core is 2.7 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The AMD EPYC 7251 has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the AMD EPYC 7251 is 2.1 GHz
and turbo frequency for one core is 2.9 GHz.
32 Threads 16
16x Cores 8x
16 CPU Cores 8
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking No
2.7 GHz Turbo Frequency (1 core) 2.9 GHz
2.2 GHz Frequency 2.1 GHz
None None 2.9 GHz
 
 

Internal Graphics

The AMD EPYC 7281 does not have integrated graphics.
The AMD EPYC 7251 does not have integrated graphics.
-- Shaders --
-- Release date --
-- Technology --
-- Direct X --
0 bytes Max. GPU Memory 0 bytes
-- Max. displays --
-- Execution units --
-- GPU frequency --
-- Generation --
-- GPU (Turbo) --
GPU name
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
-- VP8 --
-- VC-1 --
-- JPEG --
-- AV1 --
-- h265 / HEVC (8 bit) --
-- AVC --
-- h264 --
-- VP9 --
-- h265 / HEVC (10 bit) --
 
 

Memory & PCIe

pci PCIe pci
Yes AES-NI Yes
DDR4-2666 Memory type DDR4-2666
Yes ECC Yes
0 bytes Max. Memory 0 bytes
8 Memory channels 8
170.6 GB/s Bandwidth 153.6 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 170 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 120 W watts.
170 W TDP (PL1 / PBP) 120 W
-- Tjunction max --
 
 

Technical details

The AMD EPYC 7281 is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 32.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD EPYC 7251 is manufactured using a 14 nm process.
Q3/2017 Release date Q3/2017
AMD-V, SVM Virtualization AMD-V, SVM
SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2
14 nm Technology 14 nm
Chiplet Chip design Chiplet
625 $ Release price 450 $
Naples (Zen) Architecture Naples (Zen)
32.0 MB L3-Cache 32.0 MB
Windows 10, Linux Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
SP3 Socket SP3
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

AMD EPYC 7281
16C 32T @ 2.2 GHz
35367
35367
AMD EPYC 7251
8C 16T @ 2.1 GHz
18947
18947

Estimated results for PassMark CPU Mark

AMD EPYC 7281
16C 32T @ 2.2 GHz
21988
21988
AMD EPYC 7251
8C 16T @ 2.1 GHz
14936
14936

Geekbench 5, 64bit (Multi-Core)

AMD EPYC 7251
8C 16T @ 2.1 GHz
4634
4634
AMD EPYC 7281
16C 32T @ 2.2 GHz
2098
2098

Geekbench 3, 64bit (Single-Core)

AMD EPYC 7251
8C 16T @ 2.1 GHz
3410
3410
AMD EPYC 7281
16C 32T @ 2.2 GHz
3175
3175

Cinebench R15 (Multi-Core)

AMD EPYC 7281
16C 32T @ 2.2 GHz
2033
2033
AMD EPYC 7251
8C 16T @ 2.1 GHz
1093
1093

Geekbench 5, 64bit (Single-Core)

AMD EPYC 7251
8C 16T @ 2.1 GHz
783
783
AMD EPYC 7281
16C 32T @ 2.2 GHz
664
664

Cinebench R15 (Single-Core)

AMD EPYC 7251
8C 16T @ 2.1 GHz
128
128
AMD EPYC 7281
16C 32T @ 2.2 GHz
119
119

Cinebench R11.5, 64bit (Multi-Core)

AMD EPYC 7281
16C 32T @ 2.2 GHz
20.6
20.6
AMD EPYC 7251
8C 16T @ 2.1 GHz
11.0
11.0

Cinebench R11.5, 64bit (Single-Core)

AMD EPYC 7251
8C 16T @ 2.1 GHz
1.6
1.6
AMD EPYC 7281
16C 32T @ 2.2 GHz
1.5
1.5