The verdict

CPU
Minisforum N5 Pro has 1.2x the CPU throughput (33,292 vs 28,621 PassMark).
Idle power
Beelink SER8 idles lower (10W vs 33W) - cheaper to run 24/7.
Networking
Minisforum N5 Pro has more NICs (2 vs 1) - better for a firewall or VLAN trunk.
Local AI
Minisforum N5 Pro has a PCIe slot for a low-profile GPU - the other needs a DIY build for local LLMs.

Which wins for each job

Job Beelink SER8 Minisforum N5 Pro
Plex / Jellyfin ~5 streams ~5 streams
Frigate NVR add a detector add a detector
Proxmox / VMs 28,621 PassMark 33,292 PassMark win
Firewall / router 1 NICs 2 NICs win
Local AI / LLM no slot PCIe GPU slot win

Approximate - capacity estimates from curated specs, the same logic as the recommender. Verify against your exact setup. Prices move; check the retailer.

Full specs

Spec Beelink SER8 Minisforum N5 Pro
Price (list) $499 $899
CPU AMD Ryzen 7 8745HS AMD Ryzen AI 9 HX PRO 370
Cores / threads 8 12
PassMark 28,621 33,292
iGPU Radeon 780M (RDNA3) Radeon 890M (RDNA3.5)
NICs 1 2
NIC model Realtek RTL8125 Marvell AQC113 10GbE plus Realtek 5GbE
RAM max (GB) 96 96
M.2 free 1 3
PCIe slot none x16
Idle (W) 10 33
TDP (W) 54 54