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  1. R

    Newly upgraded to 2700x - some questions

    When you have > 4 cores you might want to consider disabling core parking from Windows. I remember some games having stuttering with core parking enabled. This will reduce your chance of hitting max single thread boost though as the scheduler will more actively schedule threads between all cores...
  2. R

    ANOTHER bad guy with a gun story

    If only all the drunk kids inside had guns on them so they could have began blindly shooting back from the smoke!! If it was an immigrant then banning all immigrants is the solution or if it was Trump supporter then it was a false flag and liberals are to blame!
  3. R

    Confirmed - i9 9900k will have soldered IHS, no more toothpaste TIM

    They're not entirely wrong in criticizing inflated numbers and rhetoric like "up to 50% faster!!" when it clearly doesn't accurately paint the whole picture. Also promoting criticism over paid reviews is healthy practice irregardless of whether those numbers come from Intel or AMD or anyone who...
  4. R

    How to promote a secular West.

    I come from the atheistic Scandinavia where we do NOT have church state separation. Despite that, religion doesn't play anywhere nearly as big a role in our society as it does in America. Reading through this thread I see all too familiar pattern with people on both sides trying to attach...
  5. R

    Intel is dropping hyperthreading from i7 chips!

    On the plus side since processor vulnerabilities are now a thing, an i7 without HT is actually slightly less broken than one with. I'm talking about TLBleed in specific; a side-channel attack which has been demonstrated to work against HT enabled Intel chips. TBH it may not be the kind of attack...
  6. R

    MSI Drops First Hint of AMD Increasing AM4 CPU Core Counts

    Amdahl's law is a good reminder there's no infinite scalability. It does make assumptions though that do not always apply. I'll just leave this direct quote from its Wikipedia article:
  7. R

    Ryzen: Strictly technical

    Absolutely it needs to be made clear this isn't typical workload. Indeed the point was to specifically test for memory congestion. As contention goes up with number of cores though, it brings up an interesting question: how will AMD deal with it in future Zen iterations. If they are going to...
  8. R

    Ryzen: Strictly technical

    Not sure if this has been done before, but I got bored and decided to do a little bit of benchmarking of second gen Ryzen 2700X memory bus congestion. The setup is simple: I have n threads each allocating 64MB of RAM, they then get synchronized and all start doing an in-memory copy of the 64MB...
  9. R

    AMD launches Zen+ 12nm Ryzen and X470 motherboards

    Oh boy is it that time of the year already! Can't wait to get one to play with.. quite interesting if some people already had the chance to purchase theirs prior to official release.
  10. R

    The Ryzen "ThreadRipper"... 16 cores of awesome

    Oh would you look at that. No asymmetric core complexes after all! It's like who would have thought.. Would be cool if one day the other two zeppelins can be unlocked via bios like in the past. Perhaps I will eventually get me a second hand TR as home server once they sell for dirt cheap.
  11. R

    This Christanity thing is confusing.

    Of course they exist. You can be highly educated and still shut down all critical thinking when it comes to specific topics like religion. In fact smart people are good at coming up with excuses to justify foolish positions. While there does seem to be some correlation between religiosity and...
  12. R

    AMD Vega (FE and RX) Benchmarks [Updated Aug 10 - RX Vega 64 Unboxing]

    While I'm personally perfectly fine with 1080 level performance, I'm disappointed to see how much power Vega FE needs to just barely reach that level. Lets be intellectually honest for a moment here: we know the consumer variant will not be that much different, and while it is likely to be...
  13. R

    Will AMD support AVX-512 and Intel TSX ?

    As vectors become wider, their use cases become narrower. I've heard people chuckle when bringing up thread ripper cause they think they have the trump card: "oh but Intel has better AVX support and in the future it will become more useful". Except that their trump card is about as legit as the...
  14. R

    South Korea suspends deployment of THAAD system

    Covering city wide region from massive artillery barrage is not what missile defense systems are for. With the exception of iron dome deployed in Israel, you would generally use them against long range precision missiles to protect installments of high strategic value. Against artillery you have...
  15. R

    Intel Skylake / Kaby Lake

    As this is an Intel specific thread, that's where most discussion should be focused. It is though entirely fair to compare upcoming products to other available products to establish where the new product will land. Comparing to both other Intel products and AMD products as well is to be...
  16. R

    Vega/Navi Rumors (Updated)

    Not exactly sure what message they wanted to convey with that CF Prey demo, but I can't exactly blame people if they take it as "one vega is not enough". That and having no fps counter made this a really bad choice for a demo. I'd expect even CF Fury to hit 60fps+ here so again what's the point...
  17. R

    AMD X399 ！！！！！

    The point here is that there is an increasing demand for more memory capacity and bandwidth as larger data sets are being passed through. You're saying it makes no sense, but I'm saying from marketing point of view it makes a lot of sense. If AMD are to have any success in enterprise markets...
  18. R

    AMD X399 ！！！！！

    Much like the SIMDs we just discussed, quad channel and 8 channel memory will not be useful in every scenario. Yet if we look at the ongoing trends, there are plenty of cases where high bandwidth does come in handy. Does the ever so annoying buzzword "big data" mean anything to you? Handling...
  19. R

    AMD X399 ！！！！！

    I don't think anyone is suggesting SIMDs are never being used. It's just that explicitly opting to use them is more of a corner case than generally utilized optimization. You'd be surprised how many developers are not even aware of SIMDs let alone use them. While they do have their time and...
  20. R

    AMD X399 ！！！！！

    Why are people so obsessed with AVX? It always comes up when talking about Zen here.. It's not even typical server workload to begin with. More typical workload would be running bunch of HTTP services and virtual machines. Very few use cases have heavy emphasis on using SIMDs and even then you...
  21. R

    DX12 case studies (NVidia GDC 2017)

    Last time I checked; Division actually ran slightly worse on DX12 than DX11 on Nvidia. I believe Quantum break on DX12 had Fury X actually outperforming 1070 and evenly match it in Sniper Elite 4. Both take a performance hit in BF1 when switching over to DX12, so it may indeed be difficult to do...
  22. R

    Vega/Navi Rumors (Updated)

    Trying to extrapolate meaningful performance estimations for stock Vega is already difficult enough. I wouldn't want to speculate on that front any further than it probably clocks higher than Polaris. My new Ryzen build accompanied with my new 1440p freesync monitor wont be complete without...
  23. R

    Vega/Navi Rumors (Updated)

    If we look at these numbers and the supposed 12.5 TFLOPS; one could expect Vega to land close to the Titan xp. But there's still the chance that even if, given optimal scenario, vega could outperform 1080Ti -we might not see it in practice that often. Perhaps either due to limitations in...
  24. R

    AMD X399 ！！！！！

    Speaking as a software guy, I'm fairly confident there will be no asymmetric CCX configurations. Even if it were technically feasible(which I'm not at all convinced that it is), it would make very little sense given how difficult it would make any optimization for the platform. Even if you...
  25. R

    AMD vs NVidia asynchronous compute performance

    Ryzen R7 1700 @ 3.8GHz, 32GB DDR4 2666MHz C14, R9 290 stock Async compute off: Async compute on: That's a difference of about ~9% in average fps and ~11% in minimum
  26. R

    For Gaming i7-7700 or Ryzen1700?

    You're talking about expectations in regarding DX12 yet refer to DX11 title. While there are not that many DX12 or Vulkan titles around as of yet, we've already seen how well Ryzen does when paired with modern API and good implementation, such as Doom on Vulkan. There are limitations to parallel...
  27. R

    Ryzen: Strictly technical

    This. It may require a bit more work, but optimizing for Ryzen does need the developer to be aware of the fact that one ought not treat Ryzens L3 as one coherent 16MB. Basically this means either staying below 8MB or splitting data sets in multiple chunks and possibly even using affinity masks...
  28. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    So I just finished watching this comparison of DX11 vs DX12 using Ryzen 1700 and RX470 vs GTX1060. Quite interesting how much the Ryzen + RX470 combo gains from moving over to DX12.. Nvidia on the other hand seems to be losing performance.
  29. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    Fakes it on 4 cores? Care to explain? I am convinced that prior to Pascal, Nvidia would not gain anything from multi threaded graphics. But seeing that at least in some cases their latest lineup appears to scale a little bit is implying that they did something. Now I wouldn't know whether that...
  30. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    This one by GN includes RX480: http://www.gamersnexus.net/game-bench/2652-battlefield-1-graphics-card-benchmark-dx11-vs-dx12
  31. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    In BF1 though it's not just Nvidia losing frames.. fps goes down on both AMD and Nvidia plus you get stuttering as well. So far most DX12 titles that have come out are less than impressive. I will leave this here though:
  32. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    My bad. Found this and it does indeed seem like they adapted Pascal for async: In that case if RoTR DX12 implementation is using multiple threads for graphics, then we should see less of a CPU bottleneck in comparison to DX11 on both Nvidia and AMD GPU.
  33. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    Much to my knowledge their current and previous gen GPUs all suffer from hardware level limitations. Their products are tuned for single threaded APIs and it has served them well. Certainly their DX11 performance tends to be better than AMD. When it comes to async compute though, in titles like...
  34. R

    Official AMD Ryzen Benchmarks, Reviews, Prices, and Discussion

    If it is true that the Nvidia driver allows for little to no parallelism, then when you are benchmarking DX12 games, you are benchmarking single threaded performance. This is something the 7700k does better than Ryzen. Now keep in mind the 7700k still has 3 more cores, so it is still being...
  35. R

    Ryzen: Strictly technical

    This would be with core parking disabled. I'll have to run some tests with core parking enabled, though I suspect it will still migrate threads, just not on the ones that are parked when running lightly threaded workloads. At any rate I shouldn't have to rely on crippling compute capacity in...
  36. R

    Ryzen: Strictly technical

    So the scheduler saga continues. This time I wanted to try out something different and see just how bad the thread migration issue is. As it turns out, there is a way to programmatically find out which core your thread is running on (see...
  37. R

    Ryzen: Strictly technical

    All testing is conducted with RAM clocked at 2400MHz CL15
  38. R

    Ryzen: Strictly technical

    More testing. This time I had all 4 threads referencing the same tree instance, which lead to some interesting results: I tried to force less than optimal scenario by setting affinity to 0,2,8,10 and referencing same instance on all threads. Having one copy means that it can only reside in...
  39. R

    Ryzen: Strictly technical

    My setup is following: OS Name: Microsoft Windows 10 Pro OS Version: 10.0.14393 N/A Build 14393 Ryzen R7 1700 @ 3.7GHz Core parking has been explicitly disabled and power plan is set to high performance just in case.
  40. R

    Ryzen: Strictly technical

    So I've read a good deal about possible problems with Windows 10 scheduler and how it may not be properly handling the two CCX design. Despite AMD already releasing a statement claiming there is no problem with scheduling under Windows, I decided to do a little experiment of my own and write a...
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