• Healthy_BrAd6254@alien.topB
    link
    fedilink
    English
    arrow-up
    1
    ·
    10 months ago

    8 TFLOPS on RDNA 3 is comparable to 4 TFLOPS on RDNA 2 (PS5).
    The PS5 uses 36 compute units. The 780M has 12.
    The PS5 has 450GB/s memory bandwidth. The 780M has around 100.

    The 780M runs at significantly lower power and shares the memory bandwidth with the CPU, but even ignoring that it’s like 3-4x worse than a PS5.

    • Pillokun@alien.topB
      link
      fedilink
      English
      arrow-up
      1
      ·
      10 months ago

      it does not work like that… 8tflop rdna3 is becaue they count the fpu perf like it is done on ampere/ada ie both the int and fpu alu can to fp while older u arch had fixed alu for int and fp.

      And there is a problem with the rdna3 where this function is not working correctly so we only get the additional 30% fpu perf from the additional fp alu units.

      and like u sait the memory is holding back the apus but it will still not perform like an 8Tflop gpu.