There is no way it does 4k 60 fps on AAA games or the likes, it will be very lightweight side-scrollers that will go there.

With a netflix-like compression (somewhat heavy compression), 1 second is around 15 mb. Blu-ray level of quality is 45 mb per second of video. I have the top speed my ISP provides and i can't reach 15 constant, 11-13 is my average.

Since it is "compressed", its not true 4K even if the resolution is 4k. Like taking a 128 kbps mp3 and re-encoding it to 320kbps. The file will be 320, but the quality of the audio stays at 128.

Compressing 4k (bunching pixels up, reducing color etc) misses the point of 4K HDR.

So its not going to happen for any meaningful game. And i have not even entered the delay in input territory.