4 ms·

Maybe per watt?

throwaway613834 9y ago
That's not the impression I got, but I'm not well-versed in the marketing terminology. Is that the impression you get from here? https://arstechnica.com/gadgets/2017/05/intel-claims-30-performance-boost-for-8th-generation-processors/ https://arstechnica.com/gadgets/2017/05/intel-claims-30-perf...
- onli 9y ago
  I might miss something in that article, but this 15-30% performance increase when pitting a dual core against a quad core is pretty bad. I don't see the mention of single thread performance. It talks about overall benchmark performance.
  - throwaway613834 9y ago
    I'm pretty sure they mean single-threaded, but I've seen different numbers floating around. Here I see between 11-29% depending on the model: https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-faster-than-7700k https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-...
    - onli 9y ago
      Okay. Well, you should wait for benchmarks. If like in the anandtech article mentioned the clock rate gets decreased, and that would be very normal when adding more cores, then a single thread performance increase is very unlikely. In the last launch Intel did not get close to those numbers, and that was without a core increase. Also, there seems to be some confusion whether those processors now are a kaby lake refresh or the new coffee lake architecture. The videocardz article mentions Coffee Lake (and some other news articles call those processors that as well), but the anandtech article defines them as a Kaby Lake Refresh. A new architecture would make a single thread performance increase more likely.
      - throwaway613834 9y ago
        Makes sense, yeah. Skeptical here as well.
      - deleted 9y ago
        [deleted]
      - jsnell 9y ago
        The table in the article shows a ~5% increase in boost clocks for the high end models. Those are what matters for single-core performance, not the base clocks.
        onli 9y ago
        I think that would be correct for the Desktop, but in laptops the turbo clock normally(?) does not work for a sufficient long time to give it any meaning.
        lorenzhs 9y ago
        It does in well-designed machines, although usually not in the ultraslim ones. The ThinkPad T470 can sustain full turbo indefinitely according to notebookcheck. Lenovo's premium line (X1 Carbon/Yoga) cannot, though, as they're too thin and light for a sufficiently capable cooling system, and will throttle after a while.
        throwaway613834 9y ago
        Would you have a link to the page you're referring to? I'm wondering if that's also true for the T470p.
        lorenzhs 9y ago
        The T470 review is at https://www.notebookcheck.net/Lenovo-ThinkPad-T470-Core-i5-Full-HD-Notebook-Review.198130.0.html https://www.notebookcheck.net/Lenovo-ThinkPad-T470-Core-i5-F... - but keep in mind that's a 15W i5. The 35W CPUs in the T470p produce a lot more heat. I'm sure notebookcheck has a review of that, too.
- rsynnott 9y ago
  That claim is for Coffee Lake. Intel have recently taken the opportunity to make their line even more confusing; _these_ 8th generation CPUs are "Kaby Lake Refresh". Coffee Lake will be along later.

Maybe per watt?

That's not the impression I got, but I'm not well-versed in the marketing terminology. Is that the impression you get from here? https://arstechnica.com/gadgets/2017/05/intel-claims-30-performance-boost-for-8th-generation-processors/ https://arstechnica.com/gadgets/2017/05/intel-claims-30-perf...

onli 9y ago
I might miss something in that article, but this 15-30% performance increase when pitting a dual core against a quad core is pretty bad. I don't see the mention of single thread performance. It talks about overall benchmark performance.
- throwaway613834 9y ago
  I'm pretty sure they mean single-threaded, but I've seen different numbers floating around. Here I see between 11-29% depending on the model: https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-faster-than-7700k https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-...
  - onli 9y ago
    Okay. Well, you should wait for benchmarks. If like in the anandtech article mentioned the clock rate gets decreased, and that would be very normal when adding more cores, then a single thread performance increase is very unlikely. In the last launch Intel did not get close to those numbers, and that was without a core increase. Also, there seems to be some confusion whether those processors now are a kaby lake refresh or the new coffee lake architecture. The videocardz article mentions Coffee Lake (and some other news articles call those processors that as well), but the anandtech article defines them as a Kaby Lake Refresh. A new architecture would make a single thread performance increase more likely.
    - throwaway613834 9y ago
      Makes sense, yeah. Skeptical here as well.
    - deleted 9y ago
      [deleted]
    - jsnell 9y ago
      The table in the article shows a ~5% increase in boost clocks for the high end models. Those are what matters for single-core performance, not the base clocks.
      - onli 9y ago
        I think that would be correct for the Desktop, but in laptops the turbo clock normally(?) does not work for a sufficient long time to give it any meaning.
        lorenzhs 9y ago
        It does in well-designed machines, although usually not in the ultraslim ones. The ThinkPad T470 can sustain full turbo indefinitely according to notebookcheck. Lenovo's premium line (X1 Carbon/Yoga) cannot, though, as they're too thin and light for a sufficiently capable cooling system, and will throttle after a while.
        throwaway613834 9y ago
        Would you have a link to the page you're referring to? I'm wondering if that's also true for the T470p.
        lorenzhs 9y ago
        The T470 review is at https://www.notebookcheck.net/Lenovo-ThinkPad-T470-Core-i5-Full-HD-Notebook-Review.198130.0.html https://www.notebookcheck.net/Lenovo-ThinkPad-T470-Core-i5-F... - but keep in mind that's a 15W i5. The 35W CPUs in the T470p produce a lot more heat. I'm sure notebookcheck has a review of that, too.
rsynnott 9y ago
That claim is for Coffee Lake. Intel have recently taken the opportunity to make their line even more confusing; _these_ 8th generation CPUs are "Kaby Lake Refresh". Coffee Lake will be along later.