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Precision Boost Overdrive How Much Over Max Boost You Have

Discussion in 'CPUs' started by gerardfraser, Jul 15, 2019.

  1. Grim5

    Mobster

    Joined: Feb 6, 2019

    Posts: 3,396

    I think AMD going to have to remove the clock speed from the box on the next batch to avoid lawsuits
     
  2. djbully

    Gangster

    Joined: Nov 7, 2013

    Posts: 261

    Location: Southampton

    My 3900x will boost over 4.6 on occasion. Noctua NH-D15 cooler. I suspect it would go higher with custom water loop.

    C6H 7106 BIOS 1.002 AGESA, not 1.003 which has a bad rep at the mo.

    [​IMG]
     
  3. DragonQ

    Soldato

    Joined: Jun 13, 2009

    Posts: 6,786

    Which cooler are you using? Mine sits between 4.2-4.25 GHz during gaming but it used to be higher than that with AGESA 1.0.0.1. I'll upload some screenshots later if I remember.

    Also, what happened to your Print Screen key?
     
  4. beany_bot

    Mobster

    Joined: Nov 19, 2015

    Posts: 4,217

    Location: Glasgow Area

    "MAX" boost.... clue is in the word MAX.
     
  5. Kali81

    Hitman

    Joined: Jun 30, 2004

    Posts: 505

    Location: London

    Never seen my 3800x hit 4.5. I can manually oc 4.3 on all cores but waiting for things to mature a bit before I try for anything more.
     
  6. willhub

    Capodecina

    Joined: Jan 3, 2006

    Posts: 22,380

    Location: MediaCityUK

    Hoping when the bioses are fully sorted there may be slightly potential with PBO and higher clocks.
     
  7. ShortWarning

    Mobster

    Joined: May 10, 2004

    Posts: 4,630

    Location: Middlesex

    I ran a real bench at stock on my 3700x and the highest clock I saw was 4.175 (this is using a kraken x62). This is over 200mhz below what's on the box. Are there any good overclocking guides? I had a decent overclock on my 1600 but the bios has completely changed since then (MSI pro carbon x370).
     
  8. DragonQ

    Soldato

    Joined: Jun 13, 2009

    Posts: 6,786

    Which benchmark? Running all cores at max would see clocks like that. The maximum clock is for single threaded loads only, as has been the case with all previous Ryzen CPUs and all recent Intel CPUs.
     
  9. harney

    Wise Guy

    Joined: Jul 8, 2013

    Posts: 1,748

    Location: Middle age travellers site

    [​IMG]

    3700x on a b350 with PBO disabled .. get the odd cores hitting over 4.5
     
  10. DragonQ

    Soldato

    Joined: Jun 13, 2009

    Posts: 6,786

    As promised. The second run is longer but you can see a slight drop in boost clocks here even if you just look at the first ~3 minutes of each graph. Ignore the huge dips off the graph, that's just when I alt-tab and a couple of the cores clock down.

    [​IMG]
    [​IMG]

    AGESA 1.0.0.1: Average core clock settles at 4.25-4.275 GHz after ~3 minutes
    AGESA 1.0.0.3AB: Average core clock settles at 4.225-4.25 GHz after ~3 minutes
     
  11. theone8181

    Mobster

    Joined: Mar 27, 2013

    Posts: 4,079

    That's with the stock prism cooler, sorry I didn't print screen as I just snapped it on my phone to show somebody on what's app. I'm not sure what agesa version it is, however I think it might be most current as I installed Ryzen master and I'm sure that includes it.
     
  12. DragonQ

    Soldato

    Joined: Jun 13, 2009

    Posts: 6,786

    AGESA version is determined by which BIOS you have installed, FYI.
     
  13. opethdisciple

    Capodecina

    Joined: May 18, 2010

    Posts: 19,899

    Location: London

    PBO on.

    I'm currently running HCI memtest to test my ram and can see that the CPU is pegged at around 4.28GHz.
     
  14. Phil Smith

    Gangster

    Joined: Jun 29, 2019

    Posts: 109

    My 3600 boosts to 4.06 with PBO enabled. It runs steady at 4.2 with manual overclocking but I can't get it any higher than that.
     
  15. chroniclard

    Capodecina

    Joined: Apr 23, 2014

    Posts: 15,826

    Location: Hertfordshire

    It's either a massive AMD con or crap bioses.
     
  16. R3v4n

    Gangster

    Joined: Jul 22, 2010

    Posts: 159

    No idea what it does I turn it on and run a stress test, stress test says 4.2Ghz, CPUZ and CAM reports 4.4Ghz, doesn't look like it does anything lol, my CPU runs at 4.4Ghz regardless of whether its on or off?
     
  17. Phil Smith

    Gangster

    Joined: Jun 29, 2019

    Posts: 109

    Anyone have any idea why with PBO enabled and AutoOC, the clock speeds hang at around the 4 .2GHz mark until I put it under load on Cinebench and they throttle down to around 4Ghz? Must be some kind of thermal throttling right? But my CPU temps aren't even going beyond 70
     
  18. R3v4n

    Gangster

    Joined: Jul 22, 2010

    Posts: 159

    Yeah mine is the same actually, it barely even hits 4.4Ghz (advertised speed) mostly hangs at 4.2 regardless of what settings I turn on or off in Ryzen Master. My temps are averaging 45C, it's not getting hot at all, yet it doesn't do it's advertised speed.

    Could it just be crap BIOS or more likely crap chips?
     
  19. Phil Smith

    Gangster

    Joined: Jun 29, 2019

    Posts: 109

    I can see that the CPU is boosting up above 4.2 but only when the computer is basically idle. Under any kind of load it just throttles back which is .... pretty pointless.

    https://pasteboard.co/Iqr8CwH.png
     
  20. R3v4n

    Gangster

    Joined: Jul 22, 2010

    Posts: 159

    Yeah mine will do the same sitting on the desktop it sits at 4.3Ghz constantly occassionally hits 4.4Ghz while its doing absolutely nothing lol.

    I actually set Windows Power Saver power plan when I'm not in a game so it doesn't idle so ridiculously high lol.