The verdict

Plex
Nvidia RTX 3050 transcodes video; Nvidia Tesla P100 is detection-only (no transcode).
Local AI
Nvidia Tesla P100 has more VRAM (16GB vs 8GB) - up to ~20B (Q4).

Which wins for each job

Job Nvidia RTX 3050 Nvidia Tesla P100
Plex transcode ~12 streams win none
Frigate NVR ~25 cameras ~25 cameras
Local LLM 8GB VRAM 16GB VRAM win
Fits a mini-PC full-size PCIe, DIY build full-size PCIe, DIY build

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 Nvidia RTX 3050 Nvidia Tesla P100
Price (list) $230 $200
Type gpu gpu
Interface pcie pcie
Transcode H.264/HEVC (NVENC Ampere) -
Frigate detector TensorRT TensorRT
TOPS - -
VRAM (GB) 8 16
Low profile no no
GPU sharing - vgpu (unlock)
Power (W) 130 250