Comment 15 for bug 1389077

As an experiment, I removed the powerclamp driver and monitored the temp sensors. The GPU never got close to high. The CPU has two thresholds, high of 86 C and critical of 100 C. With the powerclamp driver, the idle injection always kicked in at 86. Without, the temp stayed at around 99 C, never ever going above 100. So you look like you're right, the CPU must be throttling itself. The PC behaved as it used to, no noticeable slowdown whatsoever.

I will now blacklist the driver and have my PC like it was before.

I recommend that the powerclamp driver be disabled by default, as there must be many people who are experiencing unnecessary and dramatic performance reduction, and have no clue what is causing it.