Soldato
At the moment the app is 20mbit limit. Frankly that's a bit poorer than I'd want put onto a big TV.
I've got a Steam link plugged into our 55" Sony, and that'll go as far as I can push it really. I think it can do 100mbit.
EDIT : The Steam App can do 100mbit too. Objectively that *is* better for IQ.
I can not really say I not used this on my 4K TV. But what I can say is my TV upscale images quite impressively. I been watching Twitch streams at 900p 60FPS and I had to check because the image quality was 4k like! I was blown away by it. It improves the picture better than my 1440p monitor.
What else AMD is doing within the GPU to also improve the quality and latency. Steam is all software vs Relive is HW accelerated.