Select GPU with Advanced options (i.e. gpu=1) : r/handbrake
HandBrake GPU Accelerated Video Encoding - Top FAQs
Enable Quick Sync on Handbrake to accelerate conversion speed
HandBrake – Convert Files with GPU/Nvenc Rather than CPU – Ryan and Debi & Toren
HandBrake Documentation — Performance
How to Fix Common Handbrake 1.0.0 H.265 Encoding Issues
Guide to HEVC/H.265 Encoding and Playback > How to Encode HEVC: Handbrake Settings to Use | TechSpot
NVIDIA NvEnc vs. CPU encoding: Can the video encoder of the Turing cards be used for twitch streaming and keep up with a CPU? Analysis with Netflix VMAF | igor'sLAB
How to Force HandBrake to Use GPU in Windows (Nvidia, AMD, Intel)
Hardware acceleration are disabled in 1.3.2 · Issue #2832 · HandBrake/ HandBrake · GitHub