AMD EPYC 7251 vs AMD EPYC 7551

Comparative analysis of AMD EPYC 7251 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.

 

Differences

Reasons to consider the AMD EPYC 7251

  • Around 50% lower typical power consumption: 120 Watt vs 180 Watt
Thermal Design Power (TDP) 120 Watt vs 180 Watt

Reasons to consider the AMD EPYC 7551

  • 24 more cores, run more applications at once: 32 vs 8
  • 48 more threads: 64 vs 16
  • Around 3% higher clock speed: 3 GHz vs 2.9 GHz
  • 4x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 4x 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 15% better performance in PassMark - Single thread mark: 1502 vs 1309
  • Around 56% better performance in PassMark - CPU mark: 18483 vs 11811
Specifications (specs)
Number of cores 32 vs 8
Number of threads 64 vs 16
Maximum frequency 3 GHz vs 2.9 GHz
L1 cache 96 KB (per core) vs 96 KB (per core)
L2 cache 512 KB (per core) vs 512 KB (per core)
L3 cache 64 MB vs 32 MB
Benchmarks
PassMark - Single thread mark 1502 vs 1309
PassMark - CPU mark 18483 vs 11811

Compare benchmarks

CPU 1: AMD EPYC 7251
CPU 2: AMD EPYC 7551

PassMark - Single thread mark
CPU 1
CPU 2
1309
1502
PassMark - CPU mark
CPU 1
CPU 2
11811
18483
Name AMD EPYC 7251 AMD EPYC 7551
PassMark - Single thread mark 1309 1502
PassMark - CPU mark 11811 18483
Geekbench 4 - Single Core 2956
Geekbench 4 - Multi-Core 20125

Compare specifications (specs)

AMD EPYC 7251 AMD EPYC 7551

Essentials

Architecture codename Zen Zen
Family AMD EPYC AMD EPYC
Launch date June 2017 June 2017
Place in performance rating 327 201
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 2.1 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 32 MB 64 MB
Manufacturing process technology 14 nm 14 nm
Maximum frequency 2.9 GHz 3 GHz
Number of cores 8 32
Number of threads 16 64
Transistor count 4800 million 4800 million
Unlocked

Memory

Max memory channels 8 8
Maximum memory bandwidth 307 GB/s 341 GB/s
Supported memory frequency 2400 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) 120 Watt 180 Watt

Peripherals

PCI Express revision x128 x128

Virtualization

AMD Virtualization (AMD-V™)