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AMD Ryzen, EPYC 5~6% Faster Out-Of-The-Box With Linux 5.11

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  • #41
    Originally posted by pal666 View Post
    i'm pretty sure memory controller is behind infinity fabric and if their clocks are different, performance will suffer
    I would not think it would be any different than on my R5 3600 as I am still using the same 32GB DDR4 3200C16 kit which means the default fabric speed is 1600 for that. Never really wanted to mess with the fabric frequency.
    Last edited by creative; 13 February 2021, 12:36 PM.

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    • #42
      pal666 From what I understand the 5000 series does support up to a 2000Mhz fabric frequency provided that one has a DDR4 4000Mhz kit and is willing to meet with the possibility of wracking their nerves with memory timings if not found in the verified vendors list.

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      • #43
        Originally posted by torsionbar28 View Post
        If only AMD would release some Xeon E3 competitors. EPYC 5000 anyone? The current 3000 and 7000 series naming certainly leaves that possibility open. It sure would be nice to have some socketed EPYC options in the 45w, 65w, 95w range, something that could replace the Opteron 4000 series. For many applications, official ECC support is a must, so Xeon E3 is the only option in this market right now.
        PS. Yes I know about Ryzen Pro having ECC support, but 1) that's OEM only, and 2) there are zero OEM's selling it with ECC enabled.
        many AM4 mainboards have ECC support in the "45w, 65w, 95w range"

        "official ECC support is a must"

        comeone who cares? an inofficial ECC support is as good as an Official support.

        Phantom circuit Sequence Reducer Dyslexia

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        • #44
          Originally posted by creative View Post
          pal666 From what I understand the 5000 series does support up to a 2000Mhz fabric frequency provided that one has a DDR4 4000Mhz kit and is willing to meet with the possibility of wracking their nerves with memory timings if not found in the verified vendors list.
          it "could" support 2ghz if you are lucky. important part is to not try to clock memory higher because it will decrease performance

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          • #45
            Originally posted by pal666 View Post
            it "could" support 2ghz if you are lucky. important part is to not try to clock memory higher because it will decrease performance
            My thoughts exactly. Buildzoid has lots of experience with those 4000Mhz and beyond memory kits. Most advertised 4000+Mhz kits pretty much are never going to go there.

            I'm not an overclocker but I have had my fair share of CPU tuning for thermals, negative voltage offsets, PBO PPT, TDC, EDC adjustments and last but not least the power limit in celcius adjustment. It was fun and interesting messing with that but honestly I am just fine with DOCP and everything else on auto. This thing idles as low as 22°C and can watch the puppy hit the end of its designed thermal envelope at 90°C on full load.

            Pretty interesting series of chips. The fact that its a 105watt chip but idles that low is pretty indicative that that single CCD is just as they said, the same high quality silicon that goes into the R9 5950x. I also dont really see the thing temp spike at least with my sample, it generally stays in the 30s. Right now I have open steam, chromium, brave, and pale moon along with qjackctl and the nvidia-settings panel open and its setting at 29°C.
            Last edited by creative; 13 February 2021, 05:20 PM.

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            • #46
              Originally posted by Qaridarium View Post

              many AM4 mainboards have ECC support in the "45w, 65w, 95w range"

              "official ECC support is a must"

              comeone who cares? an inofficial ECC support is as good as an Official support.
              torsionbar28 Asus 570 WS and ASRock Rack have AM4 motherboards with official ECC support.
              AMD does not mandate ECC support for Ryzen but leaves it up to the MB manufacturers to create dedicated MB lines with support. So there are several AM4 MBs that support officially ECC RAM!

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              • #47
                Originally posted by mppix View Post

                torsionbar28 Asus 570 WS and ASRock Rack have AM4 motherboards with official ECC support.
                AMD does not mandate ECC support for Ryzen but leaves it up to the MB manufacturers to create dedicated MB lines with support. So there are several AM4 MBs that support officially ECC RAM!
                My X570-P supports ECC memory but says it depends on the CPU.

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                • #48
                  Originally posted by creative View Post
                  My X570-P supports ECC memory but says it depends on the CPU.
                  MB vendors will list qualified CPUs (usually only RAM speed and supported generations are affected).

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                  • #49
                    Originally posted by mppix View Post

                    MB vendors will list qualified CPUs (usually only RAM speed and supported generations are affected).
                    Known.

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                    • #50
                      Michael - Paulaner Spezi instead of beer? Do I have to worry?

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