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I'm curious about the 280 watt TDP, especially for the 16 core part. The 16 core Threadripper 2 had a 180 watt TDP, so what are they doing with the extra hundre

I'm curious about the 280 watt TDP, especially for the 16 core part. The 16 core Threadripper 2 had a 180 watt TDP, so what are they doing with the extra hundred watts on a smaller process? Could these chips be running at much higher frequencies? We might really be at the brink of no-compromise super high end workstation computing!

bjoli 7y ago
Isn't the ryzen 9 3950x 16core as well, but with a much lower TDP? (Whatever that means in this case). Comparing tdp is pretty useless.
- driverdan 7y ago
  It's not useless. Higher TDP means more electricity and more heat. Running costs add up.
  - rubbingalcohol 7y ago
    True, you'd need a pretty good water cooler to run at max all the time. I would gladly trade electricity for performance though. A lot of the stage gates in my compilation are single threaded, so a highly-threaded chip that consistently boosts up to high frequencies would be worth it to me in terms of initial and ongoing costs.
  - bjoli 7y ago
    For AMD it is. They calculate it using a formula with constants that differ for each processor. Gamers nexus does a pretty good job explaining it: https://youtu.be/tL1F-qliSUk https://youtu.be/tL1F-qliSUk There are loads of videos on YouTube about how AMD 105tdp processors beat intel processors with a lot lower TDP
deleted 7y ago
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paol 7y ago
280W is for the 32 core chip. Rumor has it that there won't be a 16 core TR, but if there were the TDP would certainly be much lower.
- bryanlarsen 7y ago
  The article lists a 280W 16 core TR.
alecmg 7y ago
Ryzen 3900X (and probably 3950X) would agressively limit all core boost to fit in the TDP. A Threadripper with a higher TDP limit (and better cooling) will be able to boost all core to same levels as single core, ideal for workstation workloads. Some of that TDP is also spent on driving additional memory channels and PCIE 4.0 lanes. There were rumors of TR having 8 channels now. And judging from active cooling on X570 chipsets, PCIE 4.0 is hot.
- stingraycharles 7y ago
  As a Threadripper user, this makes me happy. I don't care about the TDP too much, as long as I can compile large C++ codebases as fast as possible (for which short-term, all-core boosts is very useful).

bjoli 7y ago

Isn't the ryzen 9 3950x 16core as well, but with a much lower TDP? (Whatever that means in this case). Comparing tdp is pretty useless.

driverdan 7y ago
It's not useless. Higher TDP means more electricity and more heat. Running costs add up.
- rubbingalcohol 7y ago
  True, you'd need a pretty good water cooler to run at max all the time. I would gladly trade electricity for performance though. A lot of the stage gates in my compilation are single threaded, so a highly-threaded chip that consistently boosts up to high frequencies would be worth it to me in terms of initial and ongoing costs.
- bjoli 7y ago
  For AMD it is. They calculate it using a formula with constants that differ for each processor. Gamers nexus does a pretty good job explaining it: https://youtu.be/tL1F-qliSUk https://youtu.be/tL1F-qliSUk There are loads of videos on YouTube about how AMD 105tdp processors beat intel processors with a lot lower TDP

deleted 7y ago

[deleted]

paol 7y ago

280W is for the 32 core chip. Rumor has it that there won't be a 16 core TR, but if there were the TDP would certainly be much lower.

bryanlarsen 7y ago
The article lists a 280W 16 core TR.

alecmg 7y ago

Ryzen 3900X (and probably 3950X) would agressively limit all core boost to fit in the TDP. A Threadripper with a higher TDP limit (and better cooling) will be able to boost all core to same levels as single core, ideal for workstation workloads. Some of that TDP is also spent on driving additional memory channels and PCIE 4.0 lanes. There were rumors of TR having 8 channels now. And judging from active cooling on X570 chipsets, PCIE 4.0 is hot.

stingraycharles 7y ago
As a Threadripper user, this makes me happy. I don't care about the TDP too much, as long as I can compile large C++ codebases as fast as possible (for which short-term, all-core boosts is very useful).