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Use Wattman to greatly reduce GPU power consumption in less-demanding games - Create custom Power Efficiency mode

post #1 of 5
Thread Starter 
With Crimson 17.4.1, Trixx does not work anymore so I decide to give Wattman a try. While it is not as stable as Trixx for overclocking, Wattman allows each game has their own overclock/undervolt profile.

With this great feature, I realize that we can create a better Power Effificency mode. Since you can only toggle Power Efficiency mode on Global settings, it can causes stutter for games that not really work well with the feature. With Wattman, you can set the gpu to down-clock and reduce voltage automatically for less-demanding games.Here is the result of my quick test. Since I use HWinfo64 to track power usage, it is not entirely accurate. But it still gives us a demonstration of what benefit we can achieve with this technique.

Settings

Stock settings: http://i.imgur.com/hyQeTKW.png

-264mv settings: http://i.imgur.com/WzL3ZSR.png

The reason I set the core clock as low as 880Mhz is that I spend a lot of time on Dota 2, which is a not really demanding game. With this -264mv settings, I can get to 100-120 fps (limit 120 fps) most of the time on the game.

Result




-264mv Dota2: Average 71W | Maximum 136W
-264mv Heaven: Average 88W | Maximum 163W
Stock Dota2: Average 143W | Maximum 262W
Stock Heaven: Average 197W | Maximum 296W

Has anyone tried this yet? Because I am still trying to find a flaw with this technique since most of the people when they undervolt, they apply undervolt profile to Global.
post #2 of 5
your thread got me interested first because of the TRIXX comment. I am OCing my powercolor RX480 via this software without problem after the CRimson driver update so what do you mean about "TRIXX not working"

as per your findings in Wattman, I think it was there from the start so nice to have indeed but OCer dont bother since they want a stable OC whatever game is thrown at teh card, my 2p of course

what I do is on desktop or 2D app, I set power saver on in Global settings and off when I start 3D gaming.
post #3 of 5
Thread Starter 
Quote:
Originally Posted by nolive721 View Post

your thread got me interested first because of the TRIXX comment. I am OCing my powercolor RX480 via this software without problem after the CRimson driver update so what do you mean about "TRIXX not working"

as per your findings in Wattman, I think it was there from the start so nice to have indeed but OCer dont bother since they want a stable OC whatever game is thrown at teh card, my 2p of course

what I do is on desktop or 2D app, I set power saver on in Global settings and off when I start 3D gaming.

My problem is that whenever I apply my Trixx settings, the gpu just sticks with 300Mhz core clock. Wattman shows of the core clock and voltage as N/A after that.

Actually the Power Efficiency mode causes the clock and voltage spikes a lot. It also creates stutter issues with a lot of games. Besides, it is annoying when you have turn it on and off manually every time you want to switch from 2D app to 3D app.
post #4 of 5
honestly I have a totally different experience.was it doing that with the previous drivers version? did you try to uninstall, reinstall Crimson 17.4.1?

I am running triple screen set-up and power efficiency ON had solved the huge core spikes I had on desktop as well as brought back memory clock to 300Mhz at idle so I couldnt be happier

you are right that it would make demanding or not well optimized games to stutter but that is understandable to be honest and as I said, I just push the slider to OFF whenever I start a gaming session
post #5 of 5
Thread Starter 
Quote:
Originally Posted by nolive721 View Post

honestly I have a totally different experience.was it doing that with the previous drivers version? did you try to uninstall, reinstall Crimson 17.4.1?

I am running triple screen set-up and power efficiency ON had solved the huge core spikes I had on desktop as well as brought back memory clock to 300Mhz at idle so I couldnt be happier

you are right that it would make demanding or not well optimized games to stutter but that is understandable to be honest and as I said, I just push the slider to OFF whenever I start a gaming session

I've already tried reinstall Crimson 17.4.1, even with DDU but the problem is still there. Afterburner works though.
Edited by killerhuy - 4/10/17 at 6:00am
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