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[thepunisher]

My current HTPC is an ancient i3 with integrated graphics and cannot do 4K. The AMD Single Board computers interest me for their low power consumption. I'm interested in madvr support but not in upscaling of my older video content . What is most important is the ability to play new 4k hdr10 content. It looks like the AMD V1807B has a Vega 11 gpu. Does anyone have any experience with one of these boards and 4k playback? An article on AVS forum made it sound like a much newer gpu was "recommend" for my desired functionality (I don't know AMDs versioning like I do NVIDIA, I assume Vega 56 is far superior to Vega 11). Any feedback is appreciated.

[hulkss]

If you want to play HDR Blu-ray without breaking the copy protection, the only CPUs that have the required Software Guard Extensions (SGX) are from Intel.

[tij]

SGX is not enough to play content legally ... you need software that has licence to decode and hardware that support hdcp ... only software i am aware of that can legally do this is PowerDVD

Legality aside ... if you ripping your own legal copy of UHD discs to HDD where protection is stripped (legality of which is shady and a topic for another discussion) ... i assume all you are worried is your gpu beeing able to play it ...

It seems nvidia 1060 with 6gb ram is minimum recommended (i have 1070 and its handling normal 4k fine ... and is just able to handke 4k 60fps) ... you can use gpu benchmarks to see if what you choose exceeds 1060 performance ... keep in mind ram requirements too

[jmone]

I'd guess it would be OK (not great) for normal (23.976fps) UHD HDR material given it appears on paper to be stronger than the Intel Iris 655 part of my NUC test. 
https://askgeek.io/en/gpus/vs/AMD_Radeon-RX-Vega-11-vs-Intel_Iris-Plus-Graphics-655