The verdict

CPU
Minisforum N5 has 5.4x the CPU throughput (28,854 vs 5,307 PassMark).
Idle power
Ugreen NASync DXP4800 idles lower (14W vs 28W) - cheaper to run 24/7.
RAM ceiling
Minisforum N5 takes more RAM (96GB vs 16GB).
Local AI
Minisforum N5 has a PCIe slot for a low-profile GPU - the other needs a DIY build for local LLMs.

Which wins for each job

Job Minisforum N5 Ugreen NASync DXP4800
Plex / Jellyfin ~5 streams ~5 streams
Frigate NVR add a detector ~4 cameras win
Proxmox / VMs 28,854 PassMark win 5,307 PassMark
Firewall / router 2 NICs 2 NICs
Local AI / LLM PCIe GPU slot win no slot

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 Minisforum N5 Ugreen NASync DXP4800
Price (list) $510 $499
CPU AMD Ryzen 7 255 Intel Processor N100
Cores / threads 8 4
PassMark 28,854 5,307
iGPU Radeon Graphics (RDNA2) Intel UHD (24 EU)
NICs 2 2
NIC model Marvell AQC113 10GbE plus Realtek 5GbE Intel I226-V
RAM max (GB) 96 16
M.2 free 3 2
PCIe slot x16 none
Idle (W) 28 14
TDP (W) 65 6