Epyc

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AMD Epyc
Produced From June 2017 to present
Marketed by AMD
Designed by AMD
Common manufacturer(s)
Max. CPU clock rate 2.7 GHz to 3.2 GHz
Min. feature size 14 nm
Instruction set AMD64/x86-64, MMX(+), SSE1, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2, AES, CLMUL, AVX, AVX2, FMA3, CVT16/F16C, ABM, BMI1, BMI2, SHA
Microarchitecture Zen (microarchitecture)
Cores up to 32 cores/64 threads (64 cores/128 threads on dual socket systems)
Core name(s)
  • Naples
Socket(s)
Predecessor Opteron
Brand name(s)
  • EPYC

Epyc is AMD's x86 server processor line based on the company's Zen microarchitecture. It was introduced in 2017.[1]

History[edit]

In March 2017 AMD announced a server platform based on the Zen microarchitecture, codenamed Naples, and officially revealed it under the brand name Epyc in May.[2] That June, AMD officially launched Epyc by releasing the Epyc 7000 series processors.[3]

Design[edit]

The platform includes one- and two-socket systems. In multi-processor configurations, two Epyc CPUs communicate via AMD's Infinity Fabric.[4] Each chip supports 8 channels of memory and 128 PCIe 3.0 lanes, of which 64 lanes are used for CPU-to-CPU communication through Infinity Fabric when installed in a dual-processor configuration.[5] All Epyc processors are composed of four eight-core Zeppelin dies (the same die as found in Ryzen processors) in a multi-chip module, with the varying product core counts produced by symmetrically disabling cores of each core complex on each Zeppelin die.[6][7]

Reception[edit]

Initial reception to Epyc was generally positive.[8] Epyc was found to perform very well in cases where the cores could work independently, such as in high performance computing and big data applications. Epyc fell behind in database tasks, reflecting the slower communication between cores compared to Intel's competitive Xeon parts.[8]

Products[edit]

Socket
Configu-
ration
Brand & Model Cores
(threads)
Clock rate (GHz) Cache Memory TDP
(W)
Socket Release
date
Release
price (USD)
Base Boost L2
(kB)
L3
(MB)
chan-
nels
Max.
frequency
All Core Max
2P Epyc 7601[9][10][11] 32 (64) 2.2 2.7 3.2 32 x 512 64 8 DDR4-2666 180 SP3 LGA
[12]
June 2017
[13]
$4200+
7551[9][10][11] 2.0 2.55 3.0 32 x 512 $3400+
7501[9][10][11] 2.6 32 x 512 155/170 $3400+
7451[9][10][11] 24 (48) 2.3 2.9 3.2 24 x 512 180 $2400+
7401[9][10][11] 2.0 2.8 3.0 24 x 512 155/170 $1850+
7351[9][10][11] 16 (32) 2.4 2.9 16 x 512 155/170 $1100+
7301[9][10][11] 2.2 2.7 16 x 512 0$800+
7281[9][10][11] 2.1 16 x 512 32[9] 0$650+
7251[9][10][11] 8 (16) 2.9 8 x 512 DDR4-2400 120 0$475+
1P 7551P[9][10][11] 32 (64) 2.0 2.55 3.0 32 x 512 64 DDR4-2666 180 $2100+
7401P[9] [10][11] 24 (48) 2.8 24 x 512 155/170 $1075+
7351P[9] [10][11] 16 (32) 2.4 2.9 16 x 512 0$750+

References[edit]

  1. ^ "Computex 2017: AMD Press Event Live Blog (starts 10pm ET)". 
  2. ^ Kampman, Jeff (16 May 2017). "AMD's Naples datacenter CPUs will make an Epyc splash". Tech Report. Retrieved 16 May 2017. 
  3. ^ Cutress, Ian (20 June 2017). "AMD's Future in Servers: New 7000-Series CPUs Launched and EPYC Analysis". Anandtech. Retrieved 12 July 2017. 
  4. ^ Kampman, Jeff (7 March 2017). "AMD's Naples platform prepares to take Zen into the datacenter". Tech Report. Retrieved 7 March 2017. 
  5. ^ Cutress, Ian (7 March 2017). "AMD Prepares 32-Core Naples CPUs for 1P and 2P Servers: Coming in Q2". Anandtech. Retrieved 7 March 2017. 
  6. ^ https://www.pcper.com/reviews/Processors/AMD-EPYC-7000-Series-Data-Center-Processor-Launch-Gunning-Xeon/Architectural-Outl
  7. ^ https://www.nextplatform.com/2017/05/17/amd-disrupts-two-socket-server-status-quo/
  8. ^ a b De Gelas, Johan; Cutress, Ian (11 July 2017). "Sizing Up the Servers: Intel's Skylake-SP Xeon vs AMD's EPYC 7000". Anandtech. Retrieved 11 July 2017. 
  9. ^ a b c d e f g h i j k l m http://www.amd.com/system/files/2017-06/AMD-EPYC-Data-Sheet.pdf Page 2
  10. ^ a b c d e f g h i j k l Cutress, Ian (20 June 2017). "AMD's Future in Servers: New 7000-Series CPUs Launched and EPYC Analysis". Anandtech.com. Retrieved 21 June 2017. 
  11. ^ a b c d e f g h i j k l Cutress, Ian (20 June 2017). "AMD EPYC Launch Event Live Blog". Anandtech.com. Retrieved 21 June 2017. 
  12. ^ Kennedy, Patrick (16 May 2017). "AMD EPYC is the New AMD Zen Based Server Brand for Naples". Serve the Home. Retrieved 16 May 2017. 
  13. ^ Kennedy, Patrick (16 May 2017). "AMD EPYC New Details on the Emerging Server Platform". Serve the Home. Retrieved 16 May 2017.