AMD Threadripper 3970X and 3960X Review: High-End Domination

Threadripper gets a big bump, thanks to 7nm, Zen 2 and PCIe 4.0.

AMD Threadripper 3970X
Editor's Choice
(Image credit: © AMD)

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Test Notes

Paul Alcorn
Editor-in-Chief

Paul Alcorn is the Editor-in-Chief for Tom's Hardware US. He also writes news and reviews on CPUs, storage, and enterprise hardware.

  • tgiguere
    small error in pricing paragraph. the 3970x isn't 1199$. :)
    Reply
  • Vrooman
    By default, Numpy and Scipy in Python are compiled with Intel's MKL. This math library provides excellent results with Intel CPUs but quite poor results with AMD. Changing the compile flag to use OpenBlas math library provides significant speedups ( sometimes on the order of 100% ) with AMD processors in Numpy and Scipy. This has been reported fairly often in Puget Systems & Phonorix processor reviews and I've personally seen it in my 3900x use. Just a note I thought would be useful to point out ( as I'm not sure this is addressed in the review )
    Reply
  • g-unit1111
    Kind of unfair that the 3175X gets lumped in that category since it's nearly 3 times as expensive as the other CPUs included in the benchmark and has almost double the cores and threads. It's like comparing a Bentley Flying Spur to a Nissan Maxima.
    Reply
  • delaro
    That is a massive amount of cores and threads that are twiddling their combined thumbs when your gaming. I'm surprised this review focused so much on that aspect. This isn't the kind of chip you buy for that use, this is the kind of chip you buy to make the games.:unsure:
    Reply
  • AC5L4T3R
    3950x currently on sale for 850 euros in Germany compared to 1550 for the 3960x. Really struggling to justify paying almost twice as much when theres nowhere near twice as much performance.
    Reply
  • larkspur
    g-unit1111 said:
    Kind of unfair that the 3175X gets lumped in that category since it's nearly 3 times as expensive as the other CPUs included in the benchmark and has almost double the cores and threads. It's like comparing a Bentley Flying Spur to a Nissan Maxima.
    Huh? We're comparing high-end CPUs here. Most of the folks buying a threadripper are using it for professional purposes. Why wouldn't we include other high-end CPUs used for professional purposes? The 3175X isn't even the most expensive chip listed. The inclusion of a Ryzen 3950x is a nice comparison for those deciding whether the extra ~$1250 for the 3970x or ~$650 for the 3960x makes sense (not including platform costs). Just as the inclusion of the Intel 3175X helps to decide whether another ~$1000 makes sense to go with a somewhat comparable Intel. In the professional world these price differences aren't nearly as large as they seem. Time=money.

    Still upset about abandoning TR4 but I know, I know. That's how it goes... <sigh> oh well :(
    Reply
  • RodroX
    Why not use a pci-e 4.0 nvme SSD for the tests?

    And why having to buy a new Mobo is a Con? Is the only way to support for PCI-E 4.0. This is not a consumer chip, so not having backward motherboard compatibility is not really an issue.
    Reply
  • larkspur
    RodroX said:
    And why having to buy a new Mobo is a Con? Is the only way to support for PCI-E 4.0. This is not a consumer chip, so not having backward motherboard compatibility is not really an issue.
    Well, ultimately you're right, it's not a dealbreaker. It's just a PiTA - swapping a CPU is relatively quick. Swapping out an entire mobo + fresh OS and software install takes a lot more time. Like I said, you're right it's not a dealbreaker, but it would have been nice to get a Zen 2 chip in a TR4 mobo.
    Reply
  • TJ Hooker
    RodroX said:
    And why having to buy a new Mobo is a Con? Is the only way to support for PCI-E 4.0.
    For the same reason that it's nice that Ryzen 3000 chips work on pre-X570 motherboards: it's nice to have that option. The new chips are still attractive options even without PCIe 4.0.
    Reply
  • RodroX
    TJ Hooker said:
    For the same reason that it's nice that Ryzen 3000 chips work on pre-X570 motherboards: it's nice to have that option. The new chips are still attractive options even without PCIe 4.0.


    I know that, heck I have an R5 3600 runing on inexpensive B450 mobo. But if you swap pins around, and you don't have extra ones like it seems AMD had to accomodate the pci-4 support on AM4 socket for its consumer chips, then theres no much you can do right?

    Its nice to have, but I still wont think is a Con.
    Reply