Is this just overwatch problem ?
Perhaps some links to the supposed better benchmarks(easily bettered by disabling many os apps/background processes, etc...).
Maybe some more INFORMATION REQUIRED WHEN POSTING A QUESTION may help someone offer further suggestions.
It's not just and Overwatch issues in performance, but it is the only game to cause my system to crash on the newest AMD drivers.
Here is one of the videos I talked about, I followed the directions in it to overclock:
As for additional information, my specs are as follows:
XFX RX470 4GB
Ryzen 3 1200 OC 3.8 @ 1.352v
8GB DDR4 ram @ 2400mhz
Windows 10 Pro
500 Watt Gold plus Certified PSU
128 gb SSD (Boot Drive)
1TB HDD (Mass storage)