The verdict

CPU
Lenovo ThinkCentre M720q Tiny has 1.6x the CPU throughput (8,500 vs 5,357 PassMark).
Plex
Topton N150 4-LAN transcodes more 4K HDR streams (~5 vs ~3).
Networking
Topton N150 4-LAN has more NICs (4 vs 1) - better for a firewall or VLAN trunk.
Local AI
Lenovo ThinkCentre M720q Tiny has a PCIe slot for a low-profile GPU - the other needs a DIY build for local LLMs.

Which wins for each job

Job Lenovo ThinkCentre M720q Tiny Topton N150 4-LAN
Plex / Jellyfin ~3 streams ~5 streams win
Frigate NVR ~4 cameras ~4 cameras
Proxmox / VMs 8,500 PassMark win 5,357 PassMark
Firewall / router 1 NICs 4 NICs win
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 Lenovo ThinkCentre M720q Tiny Topton N150 4-LAN
Price (list) $120 $117
CPU Intel Core i5-8500T Intel Processor N150
Cores / threads 6 4
PassMark 8,500 5,357
iGPU UHD 630 Intel UHD (24 EU)
NICs 1 4
NIC model Intel I219 Intel I226-V
RAM max (GB) 32 32
M.2 free 1 1
PCIe slot x8-lp none
Idle (W) 8 8
TDP (W) 35 6