ClockTuner 2.0 for Ryzen (CTR) Guide

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Working with CTR / undervolting

Working with CTR 

After I saved both profiles, we need to notify CTR that we want to use HYBRID OC. To do this, I turn on CTR HYBRID OC, Autoload profile with OS and go back to PROFILE MANAGEMENT to push APPLY P1 PROFILE or APPLY P2 PROFILE button. This will allow the saved profiles to begin to be used. Then I press SAVE P1 PROFILE or SAVE P2 PROFILE depending on which profile was activated. This is so that the CTR saves the final settings. That is all. Then each time you start the system, CTR will automatically start and hide in the tray.

Ryzen 9 5900X and undervolting

Small and energy-efficient solutions are trendy these days. Undervolting is a special kind of art, and CTR can also help with it. I set the starting value to 4150MHz for Reference frequency and 1V for Reference voltage and pressed TUNE.


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The result was a 26% drop in PPT, from 142W to 106W, with even a slight boost in all-core performance. Sometimes I find it hard to imagine that kind of power in a compact 100W.


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If you want to use it in HYBRID OC mode, save that profile to the P1 “cell.” That's what I did; I saved the P1 profile in P2 at the same time.


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To test the performance, I ran Cinebench R20 in 6 thread mode, and CTR loaded only CCD#1, which contains the most performance and power-efficient cores.


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The maximum temperature did not exceed 53 degrees with a VID of 1.188V, which is a record low value. Comparing with the default boost, we have a difference of 18 degrees. A similar situation will be observed in games.


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