I've been running my AMD Hackintosh for almost a year (X570 Aorus Wifi ITX board, 3900X) and recently swapped the motherboard for a X570 Aorus Master - Similar to my other board, the CPU would 'sawtooth' temperatures in Power Gadget and unless you tweaked the fans you would hear them ramp up/down all the time. Under background noise/idle workload it would fluctuate between 42 and 58C a few times each minute. I'd also experience weird periods of pauses on the system - Less than a second but happened every few minutes.
I updated my board to F33a last night which contains AGESA 1.2.0.0 and it's night and day. CPU temps are basically flat, all those micro-stutters are gone. I set my fans back to normal fan curve and they're super quiet now.
Haven't done any performance tests yet, but I'd not expect workload to be much different - This just seems to tune PBO and help with the spikes.
F33a is a beta bios from Gigabyte, so YMMV and don't cry if it bricks your board. :)
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