AMD EPYC 7251 vs AMD Opteron 6376

Comparative analysis of AMD EPYC 7251 and AMD Opteron 6376 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Virtualization, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

 

Differences

Reasons to consider the AMD EPYC 7251

  • CPU is newer: launch date 4 year(s) 7 month(s) later
  • Processor is unlocked, an unlocked multiplier allows for easier overclocking
  • Around 45% higher clock speed: 2.9 GHz vs 2 GHz
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 32 nm
  • 2x more L3 cache, more data can be stored in the L3 cache for quick access later
  • Around 45% better performance in PassMark - Single thread mark: 1671 vs 1153
  • Around 19% better performance in PassMark - CPU mark: 14935 vs 12601
Specifications (specs)
Launch date June 2017 vs November 2012
Unlocked Unlocked vs Locked
Maximum frequency 2.9 GHz vs 2 GHz
Manufacturing process technology 14 nm vs 32 nm
L3 cache 32 MB vs 16 MB
Benchmarks
PassMark - Single thread mark 1671 vs 1153
PassMark - CPU mark 14935 vs 12601

Reasons to consider the AMD Opteron 6376

  • 8 more cores, run more applications at once: 16 vs 8
  • 4x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 4% lower typical power consumption: 115 Watt vs 120 Watt
Number of cores 16 vs 8
L2 cache 16 MB vs 512 KB (per core)
Max number of CPUs in a configuration 4 vs 2
Thermal Design Power (TDP) 115 Watt vs 120 Watt

Compare benchmarks

CPU 1: AMD EPYC 7251
CPU 2: AMD Opteron 6376

PassMark - Single thread mark
CPU 1
CPU 2
1671
1153
PassMark - CPU mark
CPU 1
CPU 2
14935
12601
Name AMD EPYC 7251 AMD Opteron 6376
PassMark - Single thread mark 1671 1153
PassMark - CPU mark 14935 12601

Compare specifications (specs)

AMD EPYC 7251 AMD Opteron 6376

Essentials

Architecture codename Zen Abu Dhabi
Family AMD EPYC AMD Opteron
Launch date June 2017 November 2012
Place in performance rating 1315 1798
Series AMD EPYC 7000 Series AMD Opteron 6300 Series Processor
Vertical segment Server Server
Launch price (MSRP) $750
OPN Tray OS6376WKTGGHK
Price now $65
Value for money (0-100) 42.66

Performance

64 bit support
Base frequency 2.1 GHz 2.3 GHz
Die size 192 mm 315 mm
L1 cache 96 KB (per core) 768 KB
L2 cache 512 KB (per core) 16 MB
L3 cache 32 MB 16 MB
Manufacturing process technology 14 nm 32 nm
Maximum frequency 2.9 GHz 2 GHz
Number of cores 8 16
Number of threads 16 16
Transistor count 4800 million 2400 million
Unlocked
Maximum core temperature 69°C

Memory

Max memory channels 8
Maximum memory bandwidth 307 GB/s
Supported memory frequency 2400 MHz 2000 MHz
Supported memory types DDR4 DDR3

Compatibility

Max number of CPUs in a configuration 2 4
Socket Count 1P/2P
Sockets supported TR4 G34
Thermal Design Power (TDP) 120 Watt 115 Watt

Peripherals

PCI Express revision x128

Virtualization

AMD Virtualization (AMD-V™)

Advanced Technologies

Fused Multiply-Add (FMA)
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions