The verdict

Plex
Intel Arc A770 16GB transcodes more streams (~20 vs ~18).
Local AI
Nvidia Tesla P40 has more VRAM (24GB vs 16GB) - up to ~33B (Q4).

Which wins for each job

Job Intel Arc A770 16GB Nvidia Tesla P40
Plex transcode ~20 streams win ~18 streams
Frigate NVR ~25 cameras ~25 cameras
Local LLM 16GB VRAM 24GB 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 Intel Arc A770 16GB Nvidia Tesla P40
Price (list) $330 $300
Type gpu gpu
Interface pcie pcie
Transcode H.264/HEVC/AV1 encode (Arc) H.264/HEVC (NVENC Pascal)
Frigate detector OpenVINO TensorRT
TOPS - -
VRAM (GB) 16 24
Low profile no no
GPU sharing - vgpu (unlock)
Power (W) 225 250