Originally Posted by
EndlessWaves
More compact? They're the same size. If you want to be picky about it the NUCs are actually a few millimetres larger:
NUC: 115 x 111 x 51.6mm
Brix: 114.4 x 107.6 x 46.8mm
Although I don't know if Gigabyte has switched to a plug transformer.
It's hard to find benchmarks of hardware that isn't high end these days but I would be inclined to avoid the Airmont processors and stick to Broadwell. i.e. The 3205U Brix is preferable to the N3700 NUC.
They'll have partial 4K support at best. I would expect them to be limited to 24/30hz output over HDMI (DisplayPort might do the full 60hz) and dedicated video acceleration will be limited to H.264. Broadwell at least has hybrid HEVC decoding but I suspect it's likely to struggle with 3840x2160 HEVC videos.