Minimum unoverclocked Integrated graphics CPU that I would be able to go onto youtube and play a 4k video no issues assuming everything else is perfect. (ram, internet speeds, hdmi connector and its my lucky day.)
We currently offer a new computer platform called NUC. Here you can find more information about the NUC specifications and usage:
You can also access the following link to check the latest Models we recently released:
Based on what you are looking for, an Intel® NUC can do the trick for you.