I have an Intel nuc7i5bnh with the 7th gen i5 cpu. I bought it specifically to use as a 4k HTPC (mkv files) after reading in various places it should decode them flawlessly.
The thing is it...almost does. The CPU stays at around 40-50% and the GPU around 20% and generally the movie plays, but there is a very small stutter every half a second or so. It's especially obvious in scenes of continuous motion, for example I was watching Interstellar when the ship spins and you can clearly notice the stutter in the spinning. On the other hand 1080p content works perfectly. Interstellar is Video : x265 3840x2160 (23.976 fps) @ 24.5 Mb/s (CRF 17).
Any idea what could cause it?
- CPU and GPU don't seem to be under load (RAM I guess doesn't matter, but it's used about 3gb out of 8gb)
- I played the file over wifi (5ghz) and from an external HDD connected on USB, same
- I tried VLC 32 and 64bit
- I checked some suggested internet solutions like file cache (was already set to 300ms)
- drivers are all up to date