In an IDLE state, a PC (motherboard / processor / memory / SSD / RTX 2080 Ti) consumes roughly 60 Watts. This number depends and will vary per motherboard (added ICs / controllers / wifi / Bluetooth) and PSU (efficiency). Keep in mind that we measure the ENTIRE PC, not just the processor's power consumption. Your average PC can differ from our numbers if you add optical drives, HDDs, soundcards etc. The red line is the Core i9 7960X tested with this particular motherboard.
Again, I want to make it very clear that power consumption measurements will differ per PC and setup. Your attached components use power but your motherboard can also have additional ICs installed like an audio controller, 3rd party chips, network controllers, extra SATA controllers, extra USB controllers, and so on. These parts all consume power, so these results are a subjective indication. Next, to that, we stress all CPU cores 100% and thus show peak power consumption. Unless you transcode video with the right software your average power consumption will be much lower. Multithreaded power consumption was rather high at almost 300 Watts.
Overall stress/load temperatures are moderate with temps at the ~70 C marker. These, of course, are default results and not tweaked and based on Wprime 1024M runs. We used a be quiet! 280mm radiator based cooling kit.