Since I didn't have any luck with my previous question about unusually high temperatures, lets try bit different one.
I have Ryzen 5 2600X on Gigabyte X470 Ultra Gaming motherboard, with BIOS settings being "Optimized defaults". And on idle, I see it is staying very high on both frequency and voltage. My old i5 6600 would on idle downclock to 0,8Ghz and would have all power saving features on, making it cool and quiet while I work on light stuff. That is not the case with Ryzen. It keeps boosting 3,9Ghz to 4,2Ghz on idle, here and there dropping to 2,7Ghz very briefly, voltages keep jumping between 1,35V to 1.45V, which makes it warm and both if put on graph would look very spikey. Now this wouldn't bother me, if temperature wouldn't also spike between 39C to 54C, making Wriath Spire cooler and exhaust fan I have audibly spin up, spin down, spin up, spin down,.... And overall, I am bit unhappy with how spiky things are, when Intel had this bit better and more consistent. Under load voltage does drop below 1,287V to 1,306V and all cores are around 3,9Ghz, but even in games, temperatures easily get to 70-80C, if game is more CPU intensive. In AIDA64 stress test, it keeps hitting up to 95C. Thought this isn't that big of an issue yet, since that kind of workload is unrealistic for me.