I won an FX-9590 CPU/Motherboard/Cooler kit from AMD in 2015,....It used this Mainboard from Gigabyte.
(please note that you ~have~ to check each motherboard's CPU compatibility list to make sure that the board will work with the higher power requirements that the FX-9950 comes with. 220Watts)
The (included by AMD) AIO cooler came from CoolerMaster, (Seidon 120mm AIO) and it used a thicker 120mm radiator than most AIO coolers.
After I had used it for a while, I sent it to my youngest son to use in his engineering tasks. He needed something dependable, and he was broke after finishing college in San Fransisco.
It was rock-solid in its performance, and the combination of a Corsair Carbide Spec-03 Case and using all Cougar Vortex fans inside of it made for a very cool running PC.
All of that said, there are faster, cooler running options from the dark side (Intel)
My i7-4770K and i7-4790K CPUs are faster by far.
AMD is preparing for the release of a new line of CPUs that will be here within a month. You should consider waiting until then to see if they're high-functioning and priced right.