Por si os interesa el tema de la disponibilidad lo hablan aquí:

https://communities.intel.com/thread/49440

Por lo visto según comentan puede traer un cambio de especificaciones:

Hi all,

Let me assure you that the DN2820FYKH has NOT been discontinued. It has just been jumping off the shelves faster than we can keep up.

In regards to the processor change - yes - there is going to be an update to this NUC for that. This actually is a stepping change to the N2820 processor, and it is getting a new name. We will be updating the NUC's technical product specification soon.
Ya que estoy dejo una review:

Intel NUC DN2820FYKH Bay Trail System Review - Page 6 of 9 - Legit ReviewsOpenELEC, XBMC and Video Playback

Con MPC HC y dos videos 1080p de 10 y 40 Mbps mostró un uso de CPU entre 7-11 %.