How is AMD Radeon R2 6110 APU for strictly video playback

OK, I agree on the chipset not being able to handle the task. As for the fact the laptop was dropped, I don't think that is a reason to count it out. I have repaired dozens of dropped laptops with good results. Many belong to police, firefighters, and other "on the go" workers. When they get a call, handling their laptop with care is the last of their priorities. My solution for this is to install an SSD. The hard drive is always the first thing to go. There is no other physical damage like cracks or scratches and the unit is clean. Usually these trash units are owned by trash people and I can count on soda spills, cigarette smoke, and just otherwise nasty. This one is not.

I often get them left behind too. Several Core i5 and i3 units have been left behind along with lots and lots of these cheapos. I personally would never buy something like this but since it was left behind, I figured I would try to make use of it. I personally call them $300 throwaways and feel people who buy them are just wasting their money. Yes, it came from Wal-Mart.

Yes, it's not video playback but it shows it takes a lot of oomph for 4K. 1080 is more likely and let the 4K TV upscale.
http://www.cnet.com/news/hands-on-with-nvidias-new-titan-x-graphics-cards/

As to the dropped unit. I didn't elaborate that it's your choice. Here the clients can be litigious if a repair fails so we always do it the right way. A dropped unit can not be warranted so the clients don't want them. I can imagine in some city what you wrote is accepted by the client but here...

I make them sign a form stating that coincidental damage that may appear later on down the road isn't my fault. I started this after a few incidents including a computer that failed SIX YEARS after I had repaired it and they tried to come back and blame me. This one will remain in my personal collection so failure won't impact a customer. They bought it at Wal-Mart for about the price I quoted them for the repair with an SSD installed so chose to abandon it. As for the ones who proceed with a repair, I make sure to let them know the risks. I require them to sign the form but some still call. For example, a guy got his computer home and the sound didn't work because he had no clue where to plug in the speakers. He calls me all hopping mad and won't listen, yelling at me for like 15-20 minutes. I told him to listen to me, otherwise I was hanging up and wouldn't talk to him again. 30 seconds later I guided him to the correct port using the color codes and everything was fine. Some people.....

As for the chipset, I bet it can DISPLAY 4k resolution. There is a big difference between supporting and displaying the resolution and actually running it well without hesitation and choppiness. I know 4k takes a lot of horsepower so was surprised to see this low end chipset support it.

Display 4K
Video on 4K
Gaming on 4K

Exponential requirements!