Personal View site logo
AMD Zen 2 aka Ryzen 3000 CPUs details
  • 104 Replies sorted by
  • AMD Financial Director Kumar director told that present average profits for Rizen 2 CPUs is more than 50% of retail price. And it is record in AMD history (for whole lineup).

    12 core model profits are around 85% of the price (16 is even more!), while 6 core model is much less.

    AMD can sell you 16 core CPU for $199 and still live perfect, but their owners need money, now.

  • Interesting article - TSMC 7nm still having big issues

    • Only one core on our Ryzen 5 3600X processor will hit AMD's rated boost frequency. AMD confirmed some cores in Ryzen 3000-series processors are faster than others, which is denoted in Ryzen Master. That means that not all cores on can hit the single-core turbo frequencies. Instead, there are a mix of fast and slow cores.
    • We recorded up to a ~75 - 100MHz difference between the fastest and slowest cores, with only one core reaching the single-core boost frequency. AMD hasn't shared the definition of the frequency that is acceptable for slower cores (it is rational to expect this to be the base frequency). While we recorded relatively small frequency deltas in our sample, it impacts performance and denotes a shift in AMD's binning strategy compared to the per-core turbo performance of Zen/Zen+.
    • Previous-gen Ryzen processors can reach boost frequencies on all cores. Intel also says its processors can reach the turbo frequency on all cores.
    • Workloads running on Ryzen 3000's slower cores experience lower frequencies than the chip's rated boost speed, and thus lower performance.
    • The combination of Windows 10's new Ryzen-aware scheduler and AMD's chipset drivers allow the operating system to schedule single-threaded tasks into the fastest cores (thread pinning). AMD has previously disclosed the Windows 10 scheduler and the CPCC2 feature, but not that the combined features assign threads to the fastest cores. This functionality requires the latest version of Windows 10. This is somewhat similar to Intel's Turbo Boost Max 3.0 on its HEDT processors, but Intel doesn't set this as a requirement to reach the normal Turbo Boost 2.0 clock speeds.
    • Older versions of Windows cannot schedule threads into the fastest cores as efficiently, thus resulting in lower clock frequencies and performance for Ryzen 3000-series processors in some workloads, which may be at the root of many user complaints.
    • Most test utilities do not measure performance fast enough to catch bursty frequency boost activity. They also do not measure certain types of power states that could indicate higher boost activity.
    • Slower cores could be a contributing factor to low overclock ceilings with Ryzen 3000 processors. Ryzen 3000 series processors hit all-core overclocks 200-300MHz below the single-core boost frequency. Slower cores simply may not be able to achieve/sustain higher frequencies, thus serving as the weakest link in the chain.

    https://www.tomshardware.com/reviews/amd-ryzen-3000-turbo-boost-frequency-analysis,6253.html

    It is also reason why AMD tightly instructed and controlled all major tests, none of them explained you this at launch time or made good tests outside latest Windows 10 build.

  • sa9244.jpg
    800 x 544 - 174K
    sa9246.jpg
    800 x 576 - 167K
    sa9245.jpg
    800 x 572 - 91K
    sa9248.jpg
    800 x 520 - 117K
    sa9249.jpg
    800 x 534 - 110K
    sa9250.jpg
    800 x 562 - 136K
    sa9251.jpg
    800 x 592 - 72K
  • Undervolting

  • 3900X vs 1700X in video and photo stuff

  • image

    sa9187.jpg
    627 x 629 - 57K
  • Using on older cheap board

  • Memory write speed issue

    image

    image

    IO chiplet is designed such that it REQUIRES two 7nm CPU chiplets to show proper memory writing speed.

    Strange.

    sa9100.jpg
    677 x 298 - 33K
    sa9101.jpg
    465 x 771 - 70K
  • More video related benchmarks

    image

    image

    image

    image

    image

    image

    sa9094.jpg
    800 x 446 - 45K
    sa9095.jpg
    800 x 439 - 43K
    sa9096.jpg
    800 x 454 - 47K
    sa9097.jpg
    800 x 442 - 52K
    sa9098.jpg
    800 x 492 - 45K
    sa9099.jpg
    800 x 425 - 42K
  • All about overclocking potential

    In short - AMD squeezed all and everything if you use any real all core load.

    Stop in silicon already happened and it is not possible to push frequency due to cooling issues and extreme leakage.

  • Btw, Threadripper 1950X that is very close to 2950X if overclocked is still best bang for Resolve

    image

    It is same price as 3900X, and good motherboards are actually CHEAPTER and will have much longer useful life due to quad channel memory and more memory slots, as well as better IO. Plus rumors are strong about 64 core affordable Threadrippers in 4 months.

    Difference with 2700X is not too big

    image

    sa9074.jpg
    601 x 602 - 84K
    sa9073.jpg
    405 x 648 - 71K
  • Some useful benchmarks

    image

    image

    image

    image

    image

    image

    image

    image

    image

    image

    sa9065.jpg
    800 x 442 - 56K
    sa9066.jpg
    800 x 443 - 58K
    sa9068.jpg
    800 x 456 - 32K
    sa9069.jpg
    800 x 450 - 35K
    sa9067.jpg
    800 x 478 - 33K
    sa9070.jpg
    496 x 605 - 63K
    sa9071.jpg
    499 x 607 - 59K
    sa9072.jpg
    496 x 607 - 55K
    sa9088.jpg
    800 x 435 - 39K
    sa9089.jpg
    800 x 438 - 39K
  • Official reviews are up

  • More benchmarks from review

    image

    image

    image

    Power consumption (system)

    image

    sa9035.jpg
    737 x 756 - 94K
    sa9036.jpg
    733 x 774 - 79K
    sa9037.jpg
    738 x 744 - 92K
    sa9038.jpg
    749 x 167 - 21K
  • 16 core Cinebench results under extreme cooling

    image

    sa9010.jpg
    800 x 658 - 83K
  • Box

    image

    sa9003.jpg
    800 x 654 - 106K
  • Ryzen Performance on X570 compared to X470

    image

    image

    Issue with memory write speed persists

    image

    sa8979.jpg
    596 x 469 - 41K
    sa8980.jpg
    595 x 311 - 26K
    sa8981.jpg
    595 x 467 - 44K
  • image

    sa8969.jpg
    800 x 601 - 87K