5 ms·

The 64-core 3990x is MSRP $4000. I’d expect this new fangled 3995WX to be that much or more.

mcraiha 6y ago
CPU and motherboard prices aren't really relevant since RAM is so expensive. And only real reason for getting this instead of 3990x is that you need e.g. 1 terabyte of RAM. https://www.amazon.com/Tech-12x128GB-2933MHz-PC4-23400-288-Pin/dp/B07ZZMSWJX/ref=pd_lpo_147_t_0/135-5978031-6451344 https://www.amazon.com/Tech-12x128GB-2933MHz-PC4-23400-288-P...
- j88439h84 6y ago
  What workload do you have in mind?
  - MooMooMilkParty 6y ago
    Scientific computing is what I would be interested in for these types of hardware.
- simcop2387 6y ago
  There might be some other cases for less ram. If the rumor that it supports rdimm or lrdimm modules is true then it could enable much easier ecc support since there are not a lot of ecc udimm options out there
  - account42 6y ago
    I had no problem finding ECC UDIMMs for my TR build. Sure, not that many options but you only need one.
  - amarshall 6y ago
    Mostly ECC UDIMMs are limited in clock speed, but many can be comfortably overclocked. I presently have four 2666 MHz ECC UDIMMs overclocked to 3200 MHz in my TRX40 workstation (M391A2K43BB1-CTD if anyone is curious).
    - pdimitar 6y ago
      Do the RAM sticks require separate cooling?
      - amarshall 6y ago
        No. For the most part heat spreaders on RAM are a gimmick (unless you’re pushing really high OC, which this is not).
- CyberDildonics 6y ago
  Saying a $4k USD CPU's price is irrelevant because 128GB DIMMs are expensive is absurd. There is no reason to think everyone who buys one is going to be spending $12k on RAM.
Dylan16807 6y ago
And as comparison, the 12-core is $500 and the 16-core is $750, both currently available for 10-15% off.
- vbezhenar 6y ago
  Those are not Threadrippers. IMO AMD misses one market segment where people want workstation CPUs but not so much cores. I would consider 12-16 core Threadripper with 4 memory channels and more PCI-E lanes with adjusted price.
  - Dylan16807 6y ago
    They're not threadrippers but there's not an enormous difference. The equivalent 16-core EPYC has an MSRP that's only 10% more than the desktop chip. The whole stack has similar pricing around core count and performance. And yeah there is a bit of a gap there. You could always get a low end EPYC but then you miss out on the turbos.

CPU and motherboard prices aren't really relevant since RAM is so expensive. And only real reason for getting this instead of 3990x is that you need e.g. 1 terabyte of RAM. https://www.amazon.com/Tech-12x128GB-2933MHz-PC4-23400-288-Pin/dp/B07ZZMSWJX/ref=pd_lpo_147_t_0/135-5978031-6451344 https://www.amazon.com/Tech-12x128GB-2933MHz-PC4-23400-288-P...

j88439h84 6y ago
What workload do you have in mind?
- MooMooMilkParty 6y ago
  Scientific computing is what I would be interested in for these types of hardware.
simcop2387 6y ago
There might be some other cases for less ram. If the rumor that it supports rdimm or lrdimm modules is true then it could enable much easier ecc support since there are not a lot of ecc udimm options out there
- account42 6y ago
  I had no problem finding ECC UDIMMs for my TR build. Sure, not that many options but you only need one.
- amarshall 6y ago
  Mostly ECC UDIMMs are limited in clock speed, but many can be comfortably overclocked. I presently have four 2666 MHz ECC UDIMMs overclocked to 3200 MHz in my TRX40 workstation (M391A2K43BB1-CTD if anyone is curious).
  - pdimitar 6y ago
    Do the RAM sticks require separate cooling?
    - amarshall 6y ago
      No. For the most part heat spreaders on RAM are a gimmick (unless you’re pushing really high OC, which this is not).
CyberDildonics 6y ago
Saying a $4k USD CPU's price is irrelevant because 128GB DIMMs are expensive is absurd. There is no reason to think everyone who buys one is going to be spending $12k on RAM.

Dylan16807 6y ago

And as comparison, the 12-core is $500 and the 16-core is $750, both currently available for 10-15% off.

vbezhenar 6y ago
Those are not Threadrippers. IMO AMD misses one market segment where people want workstation CPUs but not so much cores. I would consider 12-16 core Threadripper with 4 memory channels and more PCI-E lanes with adjusted price.
- Dylan16807 6y ago
  They're not threadrippers but there's not an enormous difference. The equivalent 16-core EPYC has an MSRP that's only 10% more than the desktop chip. The whole stack has similar pricing around core count and performance. And yeah there is a bit of a gap there. You could always get a low end EPYC but then you miss out on the turbos.