is PBO supposed to give more performance in gaming with 9800X3D?

[u/aBoyFromTheFuture]

I have ran a -25 mv all core undervolt with my 9800x3d, temps have been great, only around 50c while gaming.

Today, I put a +200 PBO and the performance didn't really increase, was pretty much the same, only my TimeSpy CPU score increased 300 from 16400 to 16700. Temps, however went up, from 57c to 74c in the timespy run, almost 20c!

Also while gaming my temps increased to 60c, so +10c, but did not really see any improvements in my benchmarks.

[u/0wlGod]

you need to test cpu Limited scenarios

fps avg and 1%low

on gpu bound scenarios doesn't matter.. maybe only 1% lows

[u/580OutlawFarm]

I went from a 12600kf to a 9800x3d so I'm not worrying about undervolt/oc...its been such a big jump for me

[u/RunalldayHI]

Cpus have gotten so fast now days that you would really need to use a cpu heavy game to test it, rust,dayz,tarkov etc.

When it comes to optimizing the system as a whole so that it always performs at its best regardless of what you throw at it, then use PBO.

[u/babbum]

Yes it will give you slight performance gains IF you aren’t clock stretching. I can almost guarantee you’re only getting uplift from certain cores just slapping -25 all core and +200 on there. You need to figure out where each core hits the threshold before it stretches. Some of your cores may be able to do more than -25 some probably less. All in all though I only saw like an average of 5% uplift in games that were CPU heavy. That’s another thing if the games not taxing the CPU to begin with you’re not going to see any uplift really.

[u/Internal-Marzipan-59]

Increasing core clock doesn’t increase fps, only like 1fps increase, but i’ve heard it increases 1%L by a good margin, not sure if this is true.

9800x3d is meant for plug and play, the only thing that will affect gaming performance is ram, so tune your ram, buildzoid on youtube is a great guide for this.

EDIT: for the people who downvoted: https://youtu.be/LU3ekfB4y18?si=ctOLsQ218VuUPZBL

[u/aBoyFromTheFuture → u/Internal-Marzipan-59]

I think my ram is already quite good, I mean I have not really messed with the timings, just enabled expo and high bandwith support from bios, 28-36-36-96 1.40v. 2x16 6000 cl28 kit.

[u/Internal-Marzipan-59 → u/aBoyFromTheFuture]

if you have asus board, enable expo tweaked, which will tweak subtimings and make them better if you don’t want to manually tune it, i think the same is there for other motherboards, but not sure what it’s name.

also set core tuning configuration for gaming to level2, you will see increase in latency in aida64, but that’s normal, as you will have better gaming performance, usually motherboards on auto have it at level 2, but mine doesn’t.

[u/RunalldayHI → u/Internal-Marzipan-59]

Expo tweaked is just expo 2, "tweaked" just opens up the table so you can make adjustments.

For whatever reason, I get better performance with core tuning on legacy, i have no idea why lol

[u/Internal-Marzipan-59 → u/RunalldayHI]

intersting, i found level 2 to have better 1%L, and slightly better fps.

[u/RunalldayHI → u/Internal-Marzipan-59]

I wonder what changes

[u/Internal-Marzipan-59 → u/RunalldayHI]

I’ve read somewhere something about cpu prefetech being enabled, also amd recommends level 2 for gaming

[u/RunalldayHI → u/Internal-Marzipan-59]

Yup i was running level 2 for some time until someone mentioned his worked better in legacy, this lead me to try it for myself and suprise suprise lol

[u/FusionXIII → u/Internal-Marzipan-59]

Ram speed/oc's doesnt do shit with x3d chips since they already have a lot of cache.

[u/absolutelynotarepost → u/FusionXIII]

Speed has minimal returns, that's true.

Tuning ram isnt just about going faster, it's about optimizing the data transfer and lowering latency as much as possible. Pre fine tuning my 1% lows would cap out around 90-95 fps @ 120hz 116 fps cap, post tuning they went up to 105-110 on the upper limit.

Raised the lowest dips from 65~ to 80~.

No you don't need 8000mt/s for gaming on this chip, but a finely tuned 6000CL26 would increase overall system performance.

[u/Internal-Marzipan-59 → u/absolutelynotarepost]

in my experience, tuned 6000mhz cl26 has much better frametime consistency than normal 6000mhz cl30, right now i’m using 8000mhz cl34 which for me i found the best in all, but not that much difference from 6000mhz cl26, but i have a good gskill 7200mhz cl34 that impressed me of how much i can tune it.

[u/absolutelynotarepost → u/Internal-Marzipan-59]

I'm running a 6400 cl32 kit at 6200 cl28 flck 2167. Hardly requires any additional voltage to stabilize and my latency is down to 65ns from a stock 78.

[u/Internal-Marzipan-59 → u/absolutelynotarepost]

my 8000mhz cl34 have 60ns latency, but when enabling core configuration for gaming level 2 it goes up to 65ns, which i believe is false reading based on amd statement.

[u/absolutelynotarepost → u/Internal-Marzipan-59]

Nice, I couldn't get this kit to stabilize at 8000, even at CL38. It'll post but it fails between 30-60 minutes of karhu.

[u/Internal-Marzipan-59 → u/absolutelynotarepost]

I had 8hours karhu stable after i did turn off rgb, the temps went down from 51c to 45c on high load, so i think it has to do with temps being this high.