Hi, I’m looking to buy a cheap Intel NUC to use as a replacement for my Raspberry Pi 4 in running PMS. I’m trying to figure out which generation of Intel CPU is required to do hardware HDR tone mapping when transcoding and am finding conflicting information: Wikipedia says HDR10 Tone Mapping was added in Ice Lake (10th gen), Plex say Kaby Lake (7th gen) and I’ve seen multiple user posts suggesting Coffee Lake (8th gen) is the minimum. I don’t want to buy hardware only to find it’s not compatible!
Any help is greatly appreciated 
7th gen definitely can do tone mapping, as Plex says. I used to have one and tested that.
You also need to consider what other tasks the CPU may be doing. Quick Sync isn’t all there is to think about. Transcoding audio and burning in subtitles will take CPU power. Sonic Analysis, intro detection… A decent CPU speeds many things. And, once you have a dedicated Plex server you may wish to run other stuff on it, too. Consider not buying the absolute oldest, cheapest CPU just because it has decent Quick Sync.
(FWIW I ended up with a gen 10 i5 while gen 12 was the new hotness.)
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Thanks!
Good point about considering other CPU tasks, I’m leaning towards a NUC with a i3-8109U that I found for a good price, it’s a lot more powerful than the bare minimum i3-7100U I’d need and not much more expensive. I see no reason to go much higher end than that since my RPI already works great with other features of Plex besides transcoding and also runs quite a few Docker containers on top of that.
That sounds like a reasonable compromise.
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