Plex/Jellyfin Transcode Performance on x86 MiniPCs or a ZimaBoard

I recently got a crazy deal on an 832 ZimaBoard and I'm hoping to use it to replace my beefy old gaming pc as my media server setup. I aim to achieve 7 concurrent 1080p streams and at least 4 1080p transcodes on either Plex or Jellyfin.

• If you have a MiniPC or a Zimaboard, what's your maximum number of concurrent streams and transcodes you've achieved on Plex or Jellyfin?
• How did the performance fare, especially at peak usage?
• Any special configurations or hardware tweaks you'd recommend for optimal performance?
• Do you recommend any low power, small form factor alternatives?

Thanks for reading!