UK BOINC Team Forum

I have been taking a look at the new AMD EPYC Server/Workstation CPUs in comparison to Intel Xeon V4s, and the difference is quite remarkable; higher cores and threads, memory channels and speed, L3 cache, and PCIE Lanes!

Intel Xeon E5-2699/96 V4 vs AMD EPYC 7601

CORES: 22 vs 32
THREADS: 44 vs 64
BASE FREQUENCY: 2.2 GHz vs 2.2 GHz
ALL CORES FREQUENCY: 2.8 GHz vs 2.7 GHz
TURBO FREQUENCY: 3.2 GHz vs 3.2 GHz
TDP: 150w/145w vs 180w
L3 CACHE: 55 MB vs 65 MB
PCIE LANES: 40 vs 128
MEMORY CHANNELS: 4 vs 8
MEMORY SPEED MAX: 2400 MHz vs 2666 MHz

Questions and Answers on EPYC:
https://www.servethehome.com/single-soc ... questions/

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About the only problem at this time is the limited lack of mobos; this one looks pretty promising:

http://b2b.gigabyte.com/Server-Motherbo ... -rev-10#ov

GIGABYTE MZ31-AR0

E-ATX
4 PCIE x16 slots
3 PCIE x8 slots

Interesting, although for $600 - $700 for that motherboard I would expect to be able to use the PCIe slots without needing extenders to miss the memory slots!

Mark

Yeah that is a good point, I did not see that.

You would also have trouble fitting more than 3 double+ width cards in any ATX specification box as that only states 7 single GPU slots.

Another person had the same query about the length of the GPUs vs the RAM slots..

http://www.overclock.net/t/1633409/list ... therboards
Personally I will just use x16 to x16 risers with a GPU rack.