Hover over the sensor name and it will tell you some info as to what it represents. You do not see them, but there are a lot more temperature sensors in the CPU than is exposed. (Tctl/Tdie) is what the CPU reports for fan speed control. The Die average is pretty much what it says, an average over time of the CPU temperature. CCD1 (and CCD2 when applicable) are the temperatures of the chiplets. I am not sure whether they are an average of the highest temperature across the chiplet, but it is also not a single sensor as far as I am aware. You also have temperatures per core, temperatures for the L3 cache and temperatures for the I/O die which is among other things responsible for communicating with memory. All have meaning and you will likely notice that they will not always agree with each other. That's fine, they represent different things. As long as your temps are below throttling temperatures, you don't have to worry to much about it. Answer from Elianor_tijo on reddit.com