It turns out Threadripper (well, a Ryzen CPU) delivers good performance at relatively low power usage. As I sit in a room made too warm by a single desktop machine running, this lower wattage sounds pretty good to me.
A running description of activity related to DragonFly BSD.
Threadripper looks something like this: 4GHz 120W, 3.8 90W, 3.6 65W, 3.4 50W, 32 42W, 3.0 33W, 2.0 13W. This excludes the SOC.
https://forums.anandtech.com/threads/ryzen-strictly-technical.2500572/page-72#post-39391302
Is this a surprise?
AMD own marketing page says the Default TDP is 105W
https://www.amd.com/en/products/cpu/amd-ryzen-7-2700x