i7 8700k CPU frequency all over the place (built today)

[kitfit1]

That makes no sense to me. Surely those who are content to stick with auto boosts are those who have no interest in overclocking. or aren't sufficiently nerdy enough? Those of us who do overclock will do so properly.

What you have just said, is not actually what i said or meant. It's fairly obvious from the vast number of posts in CPU/Ram sections of the forum that a huge number of peeps become completely baffled when there ram won't run stable on an AMD rig when they have set DOHCP. An even bigger number of peeps just leave there ram at DOHCP should it prove to be stable. Take what you will from that, but to me it means peeps can't be bothered to clock and test ram properly. Yes, maybe it's because they arn't "nerdy" enough.............................being on an overclocking forum though should at least make some mildly interested in finding out how to overclock.
As far as Auto boost is concerened, during and since the reviews of Ryzen 2 most commentators have constantly said there is no point in attempting to overclock past the boost speeds. My view is they are completely wrong and have let us all down by not even trying. With good water cooling it's fairly easy to get a 2700x to 4.3ghz all core clock and very easy to run a 4.4GHz all core clock for benching. Again though, if peeps don't know how to, then they will simply use Auto Boost.

 

[MagicBoy]

OP asks a question about an 8700k ... turns into a Ryzen 2 and how no-one properly overclocks anymore rant.

 

[Drollic]

+1
Even though i have a 2700x, there is no way i would keep it at anything other than full chat.

You only have to run the most basic of benchies to see the difference.

To be perfectly honest, i think the reason most peeps are more than happy to to use MCE and the AMD version, is because they think they then don't need to do proper testing.
Over the years that has become more obvious because peeps now just assume that XMP works..............yes it does with Intel. But what most don't seem to realize is that even with 3200 14-14-14 even B-die has totally **** sub timings, Intel or AMD.
Auto clocking is now so endemic...............that most peeps on here have next to no idea how to clock a CPU and no idea at all how to clock ram.

What kind of difference and do you have any screenshots

 

[gavinh87]

OP asks a question about an 8700k ... turns into a Ryzen 2 and how no-one properly overclocks anymore rant.

Welcome to the cpu section. Every thread has a ryzen in it

 

[Zhuni]

Does the OP drive to work at his cars declared top speed on all roads also?

Hell yeah!!!

 

[ClownsBlur_]

Where is this maximum performance power setting? In Windows? Could you help me on this please?

Thank you. I did this and Core Temp is locked at 4400MHz. The default clock is 3.7GHz on the 8700k. I haven't touched any settings in the BIOS yet. Or is this just default settings in the BIOS?

 

[imginy]

Thank you. I did this and Core Temp is locked at 4400MHz. The default clock is 3.7GHz on the 8700k. I haven't touched any settings in the BIOS yet. Or is this just default settings in the BIOS?

Yeah this is normal .

3.7 ghz is the base clock they don't actually run at this, I think this number is just used to get tdp number lower for sales.

By default they boost to 4.7ghz I think all core boost is about 4.3ghz.

More info here is ya want it.
https://www.gamersnexus.net/guides/3077-explaining-coffee-lake-turbo-8700k-8600k

 

[F1aw1ess]

yeah just leave it alone, its does a nice job.

I personally notice slight fluctuations in frametime in twitchy FPS games if i leave it on balanced power setting so i have created 2 little icons on my rocketdock, one for balanced and the other for high performance, i just click high performance before i game and then click balanced again once ive finished.

 

[DragonQ]

yeah just leave it alone, its does a nice job.

I personally notice slight fluctuations in frametime in twitchy FPS games if i leave it on balanced power setting so i have created 2 little icons on my rocketdock, one for balanced and the other for high performance, i just click high performance before i game and then click balanced again once ive finished.

Never had to bother with that. In Overwatch I can see my CPU pegged at max the entire time, without any funny tweaking going on. I just use the Performance profile with the minimum CPU frequency set to 5% (in reality much higher).

 

[ClownsBlur_]

My cores sit at 32-34c at 4400MHz in Core Temp. I guess that's great temps?

 

[faceman123]

My cores sit at 32-34c at 4400MHz in Core Temp. I guess that's great temps?

without OC it's hard to say, mines during gaming hover around 45-49c @5.1ghz with delid

 

[ClownsBlur_]

I've set the power setting in Windows back to balanced (default) and manually overclocked my 8700k to 4.7GHz. I've set my CPU Vcore to 1.27v. Is this too high or just about right or would I be ok at 1.26v or even 1.25v? Thanks.

 

[TJM]

I've set the power setting in Windows back to balanced (default) and manually overclocked my 8700k to 4.7GHz. I've set my CPU Vcore to 1.27v. Is this too high or just about right or would I be ok at 1.26v or even 1.25v? Thanks.

I'm running at 4.8 on all cores at 1.24v. I'd drop it to 1.2v and run Prime95 for a while to see if it crashes. If it does, increase by .1v and repeat until it stops crashing.

It might help to change some other BIOS settings. I use these, which I think are recommended more often than not:

Cache ratio: 44
AVX Offset: 3
Speedstep: Disabled
Turbo Boost and Speed Shift: Enabled
LLC: Level 1 (this is the maximum on Asrock boards - I think some scale the other way)
VCCIO: 1.05v
VCCSA: 1.25v

 

[ltron]

The newer Intel processors have a technology called speed shift which means the transitions to maximum frequency are orders of magnitude quicker than pre-Skylake processors and there will be effectively no difference between running max frequency all the time and using the power saving features. Therefore, there is no need to disable them and they improve the longevity of your CPU as you are not running max voltage all the time.

 

[ltron]

yeah just leave it alone, its does a nice job.

I personally notice slight fluctuations in frametime in twitchy FPS games if i leave it on balanced power setting so i have created 2 little icons on my rocketdock, one for balanced and the other for high performance, i just click high performance before i game and then click balanced again once ive finished.

This is true with Has well E as it doesn't work well with Balanced. Customising High Performance by setting min CPU frequency to 5% gets rid of these performance problems as there are hidden settings that are not exposed to the user in these profiles and your CPU will still down clock under idle.

However, this not necessary on newer processors as they use speed shift technology.

 

[pandem0nium]

I've seen speed shift disabled by default on a few 100 and 200 motherboards, so it's worth checking.

Also I remember from the reviews that speed shift is better on Kabylake than Skylake. The frequency is changed twice as often IIRC.

 

[ClownsBlur_]

I'm running at 4.8 on all cores at 1.24v. I'd drop it to 1.2v and run Prime95 for a while to see if it crashes. If it does, increase by .1v and repeat until it stops crashing.

It might help to change some other BIOS settings. I use these, which I think are recommended more often than not:

Cache ratio: 44
AVX Offset: 3
Speedstep: Disabled
Turbo Boost and Speed Shift: Enabled
LLC: Level 1 (this is the maximum on Asrock boards - I think some scale the other way)
VCCIO: 1.05v
VCCSA: 1.25v

I got my cache ratio on 45, AVX I left it default (didn't change nothing), Speedstep is disabled along with the other power saving features etc, LLC I actually left on auto as I've seen people mention that some might be ok on auto and others on turbo.