[blattimwind]

The 3900X and 3950X sadly still have issues with idle power, the lower end chips do much better. A 3400G for example self-reports less than 10 W at idle, entire system is around 20 W out of the power socket. The uncore of my 3900X consumes more than that in idle according to itself...

The usual desktop (3500-3800 series) chips perform similarly well, it's just the two-chiplet AM4 processors that have been somewhat plagued by problems like this.