Hello!

I’m about to start overclocking my 10900x with the x299 dark. I know how no need to fuss about that but my technical dilemma is as follows :

Performance wise, is it better to run a 24/7 oc (4.3ghz on all cores) or is it better to use speedstep and use Intel’s Turboboost tech ? Here’s where it gets technical. From my performance point of view i would use the 24/7 (don’t care about electricity bills). I fear that using speedstep will yield stutter when games/apps want more juice and the cpu will bump from 3.7ghz to 4.3ghz.

FYI, my computer isn’t running all day/all night. It’s on when i need it and stays on until i go to sleep in the evening. Most of the time it’s on from 10am to 9pm hence why i’m not really scared of have 1.15/1.2v running with this kind of use.

Ideas ?

Go like you want, probably seen my late comments about OC and Speedstep/Turboboost
Would be nice to see some CB20 results too. It's very nice to spend time with trying and testing things to get better results.
Maybe yeah holding 10 core all-time OC is OK, but myself with 16 core part, will not do it :D EVGA board BIOS defaults tend to be more all-time OC friendly, looks like to me. I haven't touched OC robot at all for example.
Have a nice results with new Cascade Lake X part! :)

bob16314
Personally, I don't want my CPU needlessly running full blast all the time due to wear/tear and heat reasons and leave SpeedStep, Turbo Boost, and C-States enabled in the BIOS..Then when I'm benchmarking/testing I simply change Win10 to High performance from Power saver (Balanced is default) in the Control Panel -> Power Options which dynamically overrides the BIOS power saving settings and runs it full blast all the time.

However, it's best to disable all the power saving settings in the BIOS and Windows when dialing in an overclock..After that, do whatever works best for you.

You should also update the BIOS to the latest version found in the EVGA Download Center, if you haven't yet.

Good luck with your OC.

+1.... my rig is much older, but i only run a high overclock locked in and stable for benching or comparison/stability testing a certain freq then drop it manually back down to a decent overclock 24/7 freq with the speedstep/turbos/cstates the rest of the time. Like Bob said, theres no need to punish your rig 24/7 with a high overclock and voltage across the board plus it will save you some electricity too. I used to run my rig 24/7/365 since 2011/12 to 2018 and it runs like a champ still. Only this last year did i start hibernating it cause i havent needed it as much.

Post results in Cinebench R15 and R20 when you get time (stock, no OC). I have got i7-9800X (still in box) and it's interesting to see results of i9-10900X.

Avenger411
Messing around with speedstep this week and during normal workload frequency would be all over the place from 1.3gh to 3.7ghz. Once i’m in a game, even if the game doesn’t use any of the cores to 100% the cpu boosts up to 4.3ghz all by itself which is what i was aiming for.

Yes, that's what it is supposed to do.  When the CPU is not utilized enough, it decides to lower frequency to save power, lower core voltage, reduce heat, and improve lifespan.  All good things.  When it is utilized enough, it automatically jumps back up to full speed and voltage.  I keep Speedstep and C states enabled when overclocking.  It's good stuff.  In my opinion, the only time you should disable Speedstep and C states is when you have determined that they are causing you to have instability when overclocking.  I think that it is a rare problem and that most people who disable Speestep and C states do so for no good reason.

Avenger411
So i tested Cinebench R15/R20 on stock and on "stock speedstep" no manual oc. Here are the results. To make it simple S = stock and SS = speedstep enabled (4.3ghz oc)
 
R15-S    : 2014pts
R15 -SS : 2300
R20-S    : 4753
R20-SS  : 5488
 
As a side note, when SS enabled, cpu bumps to 4.3ghz under load and vcore around 1.13/1.14 with temps well in check @60-65c. I'm around 99% sure i can get much much more out of that cpu but i do not have the time today sadly. I'll try manual oc to 4.4/4.5/4.6 and so on  and provide results etc.
 
Cheers!

What's your single Core R20 result?