The verdict

CPU
Dell OptiPlex 7080 Micro has 2.4x the CPU throughput (12,829 vs 5,333 PassMark).
Plex
CWWK NAS Board transcodes more 4K HDR streams (~5 vs ~3).
Idle power
Dell OptiPlex 7080 Micro idles lower (11W vs 12W) - cheaper to run 24/7.
Networking
CWWK NAS Board has more NICs (4 vs 1) - better for a firewall or VLAN trunk.
RAM ceiling
Dell OptiPlex 7080 Micro takes more RAM (64GB vs 32GB).

Which wins for each job

Job CWWK NAS Board Dell OptiPlex 7080 Micro
Plex / Jellyfin ~5 streams win ~3 streams
Frigate NVR ~4 cameras ~4 cameras
Proxmox / VMs 5,333 PassMark 12,829 PassMark win
Firewall / router 4 NICs win 1 NICs
Local AI / LLM no slot 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 CWWK NAS Board Dell OptiPlex 7080 Micro
Price (list) $210 $210
CPU Intel Processor N100 Intel Core i7-10700T
Cores / threads 4 8
PassMark 5,333 12,829
iGPU Intel UHD Intel UHD 630
NICs 4 1
NIC model Intel I226-V Intel I219-LM
RAM max (GB) 32 64
M.2 free 1 0
PCIe slot none none
Idle (W) 12 11
TDP (W) 6 35