CoreDuoTemp – Monitor your CPU Usage & Temperature
If you’re a sucker for system stats and monitoring widgets, then CoreDuoTemp is for you. This little app stays quietly put in your menu bar displaying some useful stats including CPU usage, the current operating speed of your processor, and the current temperature of your Intel CPU. Of course this means you have to have an Intel Mac to get usage out of CoreDuoTemp. I have found it a necessity to have some kind of CPU monitor open at all times since certain Mac OS X applications tend to spaz out. CoreDuoTemp is inconspicuous and lightweight, and thus far my monitoring app of choice.
The screenshot to the left shows the optional floating activity monitor. I prefer just the menu bar, shown below. CoreDuoTemp works on the following Intel Mac’s: Mac Mini, MacBook, MacBook Pro, iMac