this is correct. it clearly states on Intel's website tdp is measured at base frequency.
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The Intel Xeon W-3175X Review: 28 Unlocked Cores, $2999
- Thread starter RavenXXX2
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Where in the UK can I buy the CPU + motherboard? Finally after 7 years there is a meaningful single-socket upgrade for my dual socket X5690 triple seat / triple GPU virtualization workstation. (No, not being sarcastic.)
Soldato
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I've not see these for sale yet in the UK, personally I replaced my dual x5660s with a Threadripper system for my virtualization needs, only gotcha is 128GB of Ram max. But you do get way more PCIE lanes and save a fortune.
I considered a Threadripper, but I would prefer to avoid NUMA and I need at least 192GB of RAM.
I guess I'll just have to wait until a UK supplier appears.
Or wait until Threadripper 3. If you've been rocking 9-year old CPUs this long then you could save a boatload of cash, assuming the RAM limit exceeds 128GB on the new X499 boards.
Threadripper is multi-die, which impacts memory latency and makes a single socket CPU into a NUMA architecture. None of this is desireable for memory latency and memory bandwidth. This is the primary reason why I want to move from dual socket system to a single socket system, without NUMA and with an on-die MCH. AMD doesn't deliver that at this time.
I read on Anandtech that the Asus motherboard, the only board available atm, is $1800 at time of writing.
But you're not getting monolithic dies any more, it's just not sustainable. The WX series Threadripper 2s had their memory foibles true, but a lot of the latency and memory addressing across dies is (likely) addressed with Zen 2's design in having that central I/O core. I honestly can't see Intel sticking with mahoosive monoliths for much longer. In fact, aren't the 48-core Cascade Lake Xeons strapping 2 dies together in a single package?
Ultimately it's your money, but I'd personally wait until EPYC Rome is properly out to see how the Zen 2 design fares in the real world, which will give a very good indication of how Threadripper 3 is going to perform.
Maybe it's not sustainable, maybe it is. But I can put it off for another decade with this upgrade without taking the NUMA hit.
It makes the imbalance go away - by making all memory accesses take the same hit.
The problem with NUMA with, say, 2 sockets, is that 50% of your memory is more than double the latency away. Ignoring all the other side effects of this (e.g. swapping insanity), it makes the memory latency unpredictable. The I/O die makes that problem go away - by making all memory remote and thus subject to that extra latency. It removes the side effects, but at the price of slowing everything down to the slow case scenario.
Maybe, but we're not talking about those here. Bottom line, even if it's not going to be sustained, I don't care about the limitations of the systems in 5 years' time, I care about putting together a system that isn't pre-crippled even by today's standards.
It's all a bit academic at the moment anyway because I can't get the W-3175X in UK either, and I'm not prepared to put up with dealing with any possible warranty issues by couriering things back and forth half way across the planet.
I'm pretty sure if latency was going to be balls, AMD wouldn't have geared their entire 2019 product line around chiplets + central I/O design. Yes, it'll never be as fast as everything on the same silicon, but who knows what magic they may have pulled. I guess we'll see.
My point was merely Intel are glueing 2 dies into a single package to address their core count deficiency, and if that is how they're approaching things until they can get 10nm producing glorious monoliths again then your latency concerns crop back up.
Indeed - it'll never be as fast as with MCH on the same die.
And my point was that for my requirements, a two-die solution isn't a meaningful enough improvement over my current two-socket workstation.
Soldato
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@gordan
Might be worth looking at Xeon Gold or Platinum if this new chip and the mobo don't make it to the UK - or possibly Xeon-W
All the above have a huge memory limit and ample PCIE lanes.
Whatever you build though you must post a build log here - will be an awesome system!
Might be worth looking at Xeon Gold or Platinum if this new chip and the mobo don't make it to the UK - or possibly Xeon-W
All the above have a huge memory limit and ample PCIE lanes.
Whatever you build though you must post a build log here - will be an awesome system!
Soldato
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It's meant to be for system integrators only.
Soldato
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Will OcUK have both the Gigabyte and Asus boards available - anyone else providing a board?
Soldato
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Ok cool 
Can't wait to see what you can get out of these beasts!
Can't wait to see what you can get out of these beasts!
Monolithic does will disappear, the next gen Xeon is allready done with them. Also same for NVidia, they have designs but no silicone.
Availability is at least another month away, just to be clear the boutique vendors are getting the majority of the CPU’s and boards, you may have to wait a few months.
Advances in substrate technology and second generation 7nm and smaller nodes will do away with a lot of the potentially issues with moving outside monolithic cores anyhow - atleast until we move to something more advanced than current switching technology.
All of Intel's TDP's are BS.