5 ms·

I am surprised at how much this thing is just straight up crushing it with just 8 cores. I think it topping the machine learning benchmarks has to do with havi

by nisten 2y ago

I am surprised at how much this thing is just straight up crushing it with just 8 cores. I think it topping the machine learning benchmarks has to do with having only 8 cores to share the 96MB of L3 cache, which ends up having a ratio of 1core having 1MBL2 + 12MB L3 which is huge, that means EACH THREAD has more cache than i.e the entire nvidia 3090 (6mb l2 total), and this ends up taking FULL advantage of the extra silicon of various avx extensions.

BeefWellington 2y ago
I'm curious to see if AMD will release a 9950X3D this time around. I can foresee that kind of CPU dominating everything else across most workloads given how good this 8-core is holding up against CPUs with double or more cores.
- Tuna-Fish 2y ago
  Yes, it's supposedly coming early next year.
  - jsheard 2y ago
    I think the current rumor is that only one of the chiplets will have the extra cache though, so you'll have 8 cores with the big cache and 8 cores with the normal cache.
    - qzw 2y ago
      If they make one with extra cache on both CCDs, it would probably get some kind of AI branding and be at a significantly higher price point. Current games would hardly benefit from 16 cores all with that much cache.
      - scheeseman486 2y ago
        The main benefit is that it's a no-compromise product. High single thread performance for games and there's more of those cores for productivity, it'd be the best workstation CPU and the best gaming CPU in one package.
        qzw 2y ago
        But you'd get 95+% of the same benefit with the v-cache on just one CCD, which is what they did with the 7950X3D.
        snvzz 2y ago
        there was some point to doing that, due to the power restrictions imposed by having cache on top. But now cache is underneath.
        scheeseman486 2y ago
        They've solved a lot of the manufacturing issues since then and since it's already a premium product, why not go all in? There might be cases where the extra cache helps performance in heavily multithreaded workloads, also niche usecases like running the chip in a headless gaming server, which would allow for splitting of the CPU into two for simultaneous game streaming without significantly compromising performance for either client. That's the point of no compromise, sometimes it's nice to have 100% benefit (not to say that making a single CCD cache version doesn't make sense as a product).
- didgetmaster 2y ago
  I have a 5950x that is now a few years old and I planned to upgrade to a 9950x. I have never had one of the 3D V-Cache processors and am curious how it would improve the benchmarks for my multi-threaded data management system that does many operations against a set of 4K blocks of data. I heard rumors that a 9950x3D version will be available in January. I am trying to figure out if I should wait.
  - grepfru_it 2y ago
    January is two months away. I would.
tiffanyh 2y ago
While true, also keep in mind that the iPad Pro (M4) which has no active cooling, and uses only 1/4th the power ... is still faster (single & multicore) than this 9800X3D - and it's also been on the market for 1/2 year now already.
- osti 2y ago
  Yup I just looked at the clang score in geekbench, for single threaded 9800x3d scored about 3200, whilst m4 had 4400... The m4 is so far above the rest it's ridiculous. Wish Apple made an x86 equivalent so that it can play Windows games lol.
  - nightski 2y ago
    Just supporting Linux would be adequate imho. Non-existent Linux support straight up makes M4 a non-starter for myself as much as I can admire the hardware.
    - osti 2y ago
      For developers yes, but gamers seem to have the loudest voice in the desktop PC performance conversation, so I think it's important to cater to that market.
      - nieve 2y ago
        Gamers in general are not looking at Apple's chips.
      - deleted 2y ago
        [deleted]
  - hulitu 2y ago
    > for single threaded 9800x3d scored about 3200, whilst m4 had 4400... The m4 is so far above the rest it's ridiculous. Except the fact that your computer runs more than one thread. Pity that this "single core" performance cannot be utilized at its maximum potential.
helf 2y ago
[dead]
jsheard 2y ago
> I am surprised at how much this thing is just straight up crushing it with just 8 cores. ♫ Cache rules everything around me ♫

by nisten 2y ago

BeefWellington 2y ago

I'm curious to see if AMD will release a 9950X3D this time around. I can foresee that kind of CPU dominating everything else across most workloads given how good this 8-core is holding up against CPUs with double or more cores.

Tuna-Fish 2y ago
Yes, it's supposedly coming early next year.
- jsheard 2y ago
  I think the current rumor is that only one of the chiplets will have the extra cache though, so you'll have 8 cores with the big cache and 8 cores with the normal cache.
  - qzw 2y ago
    If they make one with extra cache on both CCDs, it would probably get some kind of AI branding and be at a significantly higher price point. Current games would hardly benefit from 16 cores all with that much cache.
    - scheeseman486 2y ago
      The main benefit is that it's a no-compromise product. High single thread performance for games and there's more of those cores for productivity, it'd be the best workstation CPU and the best gaming CPU in one package.
      - qzw 2y ago
        But you'd get 95+% of the same benefit with the v-cache on just one CCD, which is what they did with the 7950X3D.
        snvzz 2y ago
        there was some point to doing that, due to the power restrictions imposed by having cache on top. But now cache is underneath.
        scheeseman486 2y ago
        They've solved a lot of the manufacturing issues since then and since it's already a premium product, why not go all in? There might be cases where the extra cache helps performance in heavily multithreaded workloads, also niche usecases like running the chip in a headless gaming server, which would allow for splitting of the CPU into two for simultaneous game streaming without significantly compromising performance for either client. That's the point of no compromise, sometimes it's nice to have 100% benefit (not to say that making a single CCD cache version doesn't make sense as a product).
didgetmaster 2y ago
I have a 5950x that is now a few years old and I planned to upgrade to a 9950x. I have never had one of the 3D V-Cache processors and am curious how it would improve the benchmarks for my multi-threaded data management system that does many operations against a set of 4K blocks of data. I heard rumors that a 9950x3D version will be available in January. I am trying to figure out if I should wait.
- grepfru_it 2y ago
  January is two months away. I would.

tiffanyh 2y ago

While true, also keep in mind that the iPad Pro (M4) which has no active cooling, and uses only 1/4th the power ... is still faster (single & multicore) than this 9800X3D - and it's also been on the market for 1/2 year now already.

osti 2y ago
Yup I just looked at the clang score in geekbench, for single threaded 9800x3d scored about 3200, whilst m4 had 4400... The m4 is so far above the rest it's ridiculous. Wish Apple made an x86 equivalent so that it can play Windows games lol.
- nightski 2y ago
  Just supporting Linux would be adequate imho. Non-existent Linux support straight up makes M4 a non-starter for myself as much as I can admire the hardware.
  - osti 2y ago
    For developers yes, but gamers seem to have the loudest voice in the desktop PC performance conversation, so I think it's important to cater to that market.
    - nieve 2y ago
      Gamers in general are not looking at Apple's chips.
    - deleted 2y ago
      [deleted]
- hulitu 2y ago
  > for single threaded 9800x3d scored about 3200, whilst m4 had 4400... The m4 is so far above the rest it's ridiculous. Except the fact that your computer runs more than one thread. Pity that this "single core" performance cannot be utilized at its maximum potential.

helf 2y ago

[dead]

jsheard 2y ago

> I am surprised at how much this thing is just straight up crushing it with just 8 cores. ♫ Cache rules everything around me ♫