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AMD Power control settings...curious about a couple things

post #1 of 18
Thread Starter 
So im pretty bored tonight and decided to mess around with trying to squeeze a little more out of my gpu without raising temps or going nuts on OC'ing it more....so i read about using the 20% power control setting and how it can net some more performance from the card

so what exactly does the 20% on the power control settings do? i havent found a definitive answer anywhere on the internet...some say it just alters the voltage on the core clock while others say it removes all the limiters on power consumption so the card doesnt have anything holding it back

is there anyway to replicate the 20% in Afterburner? cause as ive read you cant have AB running and have the power control settings enabled as it resets the 20% back to 0%

i ask cause i have noticed an improvement in the Kombustor Kmark extreme benchmark...without 20% i get 1965ish and with the 20% i get 2030ish...now i know thats not real world...but im sure if its seeing an improvement there ill see at least a small one in games
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post #2 of 18
Taken from an article:

"Our design team decided to replace the Auto Tune test and put the PowerTune Power Control slider in its position in the interface." - AMD PR

We then asked AMD if increasing the power control settings would help overclocking and they responded with this statement.

"Overclocking will presumably cause most apps to draw more power, which means some of the more stressful ones may spend more time being constrained by the PowerTune limit and having their clock frequency throttled. Increasing the PowerTune limit should provide more opportunity for performance increases in those cases, but it shouldn’t otherwise affect the maximum achievable clock speed." - AMD PR

Just to give you a general idea of what the Power Control Settings do.
post #3 of 18
The cards gets throttled when they hit the TDP limit. Powertune simply raises that limit higher. When overclocking you're gonna want to raise the TDP limit, unless you like getting throttled...?
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post #4 of 18
Quote:
Originally Posted by FreekyGTi;15376610 
So im pretty bored tonight and decided to mess around with trying to squeeze a little more out of my gpu without raising temps or going nuts on OC'ing it more....so i read about using the 20% power control setting and how it can net some more performance from the card

so what exactly does the 20% on the power control settings do? i havent found a definitive answer anywhere on the internet...some say it just alters the voltage on the core clock while others say it removes all the limiters on power consumption so the card doesnt have anything holding it back

is there anyway to replicate the 20% in Afterburner? cause as ive read you cant have AB running and have the power control settings enabled as it resets the 20% back to 0%

i ask cause i have noticed an improvement in the Kombustor Kmark extreme benchmark...without 20% i get 1965ish and with the 20% i get 2030ish...now i know thats not real world...but im sure if its seeing an improvement there ill see at least a small one in games

CCC Overdrive PowerTune +20% doesn't work along in the presence of Afterburner. Here's the workaround but you have to do it every time you turn PC on/restart.

- Exit Afterburner (not minimized).
- CCC Overdrive set PowerTune +20%, Click "apply" then exit CCC (not closed).
- Go to Task Manager to stop the services of CCC.exe & MOM.exe.
- Open Afterburner.

Have funs.
post #5 of 18
Quote:
Originally Posted by Wali-S;15378228 
CCC Overdrive PowerTune +20% doesn't work along in the presence of Afterburner. Here's the workaround but you have to do it every time you turn PC on/restart.

- Exit Afterburner (not minimized).
- CCC Overdrive set PowerTune +20%, Click "apply" then exit CCC (not closed).
- Go to Task Manager to stop the services of CCC.exe & MOM.exe.
- Open Afterburner.

Have funs.

Besides Powertune incompatibility with AB, you forgot to mention ULPS and Powerplay. AB is great stuff.
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post #6 of 18
Quote:
Originally Posted by tsm106;15378258 
Besides Powertune incompatibility with AB, you forgot to mention ULPS and Powerplay. AB is great stuff.

I believe OP is using a single, that's what I see in his sig rig.
post #7 of 18
Thread Starter 
Ok so from what ive gathered off all the responses is that the PowerTune/Power control settings is to raise the TDP limit to get rid of any type of throttling

so with that knowledge...i have a few more questions

what signs would there be of hitting that TDP throttle?

would using the 20% affect temps and what not at idle and on load?

also to the 2nd part of my OP...is there any way to have a 3rd part program like AB control that 20% or do something similar? or will i have to resort to what Wali-S said about enabling the 20% and this disabling CCC stuff

also yes only running a single card
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post #8 of 18
1. Memory/core downclock and voltage drops to stay within the power draw limit.

2. Yes, as more power will create more heat.

3. Yes or avoid using Afterburner entirely.
post #9 of 18
Thread Starter 
Quote:
Originally Posted by Wali-S;15384918 
1. Memory/core downclock and voltage drops to stay within the power draw limit.

2. Yes, as more power will create more heat.

3. Yes or avoid using Afterburner entirely.

thanks for the response

yeah havent seen any signs on that throttling...the card isnt OC'ed too much so thats probably why
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post #10 of 18
I just wanted to add that you don't want to completely remove Powertune throttling as someone else suggested. It's the safety that keeps the card from frying itself. You can tell when you hit TDP limits because the performance will start to drop off, plateau or even stutter. However, it's really hard to hit TDP limit with +20%. AB can't control anything in regards to AMD's powersaving features, you should keep that in mind when using AB.
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