It says in that document.
Radeon™ RX 550 and Radeon™ RX 560: Enjoy Gaming At Its Best
Both the Radeon™ RX 550 and Radeon™ RX 560 graphics cards come with features built for gamers, content consumers, and content creators. Optimized for streaming, recording, and sharing gameplay, AMD's Polaris-based GPUs ship ready to encode and decode at up to 4K 60fps using H.265 right out of the box.4
Additionally, the 4th Generation Graphics Core Next (GCN) architecture, featuring Asynchronous Shaders and an enhanced geometry engine, brings smooth and immersive gameplay.
Whether your target audience is looking to consume or create media, or game competitively, the Radeon™ RX 550 and Radeon™ RX 560 are powerful options that remove the limits on consumer ambitions.
Where is the transcode or AMD media encoder software to do h.265 at hardware level.
The 18.5.1 driver was the last one I knew that used the GPU.
What is AMD's response to CUDA?
Only use the CPU and never touch all the horsepower in the GPU?
I am not using a hybrid system.