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compress-av/hevc_nvenc_1080p.md

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Preset: 1080P HEVC NVENC

File: hevc_nvenc_1080p.json — HandBrake preset for GPU-accelerated HEVC (H.265) compression of 1080p video using NVIDIA NVENC.

What it does

  • Encoder: nvenc_h265 (HEVC on the GPU, not CPU x265)
  • Preset: slow — best quality/speed balance on Pascal-class GPUs; slowest gains almost nothing but nearly halves the speed
  • Rate control: VBR, 1850 kbps video (multipass) + 160 kbps AAC stereo audio
  • Resolution: unchanged up to 1920×1080 (larger sources are downscaled to fit, aspect ratio preserved, no upscaling)
  • Framerate: same as source (VFR passthrough)
  • Container: MP4, web-optimized, chapters + metadata preserved
  • Subtitles: not included

Tuned so a ~3 hour 1080p source lands around 2.5–2.7 GiB. Reference result: 8.06 GB h264 1080p source (2h59m) → 2.68 GiB HEVC, ~26 min encode on a GTX 1060 (~220 fps average).

Requirements

  • HandBrake 1.8+ (HandBrakeCLI.exe for command line use)
  • NVIDIA GPU with HEVC NVENC support (GTX 10-series or newer) and recent drivers

Usage — command line

HandBrakeCLI --preset-import-file hevc_nvenc_1080p.json \
  -Z "1080P HEVC NVENC" \
  -i input.mp4 -o output.mp4

Windows example:

& "C:\Program Files\HandBrake\HandBrakeCLI.exe" `
  --preset-import-file hevc_nvenc_1080p.json `
  -Z "1080P HEVC NVENC" `
  -i "F:\Media\input.mp4" -o "F:\Media\output.mp4"

Usage — HandBrake GUI

  1. Open HandBrake → Presets panel → Import (bottom of the panel).
  2. Select hevc_nvenc_1080p.json.
  3. Open your source, choose the 1080P HEVC NVENC preset, set the output path, Start.

Adjusting the target size

The output size is driven by VideoAvgBitrate (kbps) and the video duration:

VideoAvgBitrate ≈ (target_bytes × 8 / 1000 − audio_kbps × duration_s) / duration_s

For a 2.5 GiB target with 160 kbps audio, that simplifies to roughly:

VideoAvgBitrate ≈ 21500000 / duration_seconds − 160
Duration VideoAvgBitrate Approx. output
1 h ~5800 kbps ~2.5 GiB
1.5 h ~3800 kbps ~2.5 GiB
2 h ~2800 kbps ~2.5 GiB
3 h 1850 kbps (current) ~2.6 GiB
4 h ~1330 kbps ~2.5 GiB

Raise the value for better quality (larger file), lower it for a smaller file. For 1080p HEVC, going below ~1200 kbps starts to show visible artifacts.