Windows 10 x64 Pro
Rx 470 4gb
Ram 16 gb
Running stream via obs on Rx 470 driver version 18.2.1 (balance) Full Hd (60 fps) is OK!
If you upgrade your driver to version 18.3.3 and 18.3.4, the encoder is overloaded and the brakes are wild on the stream!
Hopefully that will fix...