If you don’t already know, Throttlewatch tells you if certain modern processors are throttling back for one of two reasons.
If your CPU is overheating, thermal management throttling kicks in. Depending on the circumstances, this kind of throttling either makes the CPU do nothing part of the time while it cools down, or reduces the frequency.
This is obviously of great interest to overclockers. There’s no point overclocking to X if the CPU isn’t doing X. Either improve the cooling or throttle your settings. If you’re not sure if the cooler you have now is good enough to cool the CPU you’re going to buy tomorrow, this kind of program will give you a better idea as to whether or not you need a new cooler.
The other kind of throttling is called power management throttling. What this does is slow down the processor when you’re not doing much with it anyway. This is obviously important if you have a notebook running on batteries, or you have a desktop and don’t much like fan noise.
What Throttlewatch does not do is actually do any throttling (desired or otherwise). It just reports the news; it doesn’t make it.
As heat becomes a bigger factor and throttling becomes more commonplace; a program such as this become more valuable as a diagnostic tool to tell you exactly what is going on.
Again, the link to the download is here