Sonarr Prefer X265 //top\\ ◆

How to Configure Sonarr to Prefer x265 (HEVC) Releases If you are looking to save disk space without sacrificing visual quality, configuring Sonarr to prefer x265 (also known as HEVC) is one of the most effective optimizations you can make. x265 releases typically offer 40-50% smaller file sizes compared to traditional x264 while maintaining similar or better clarity.

Tip: This matches common naming conventions like x265, h.265, or HEVC. Click Save. Step 2: Assign a Score in Your Quality Profile sonarr prefer x265

• Preferred: x265 (+100), hevc (+100)
• Ignored: cam, ts, screener

8) Handling Existing Library (Mass-upgrade to x265)

• Add tag "prefer-x265" to series you want to convert.
• Trigger "Search for missing episodes" or use the "Season Pass" -> “Search selected” to prompt Sonarr to look for better versions.
• Review Sonarr Activity / Queue to confirm it selects x265 releases, then approve.
• For mass automated upgrades, be cautious: enabling automatic search on replacement may cause many downloads; schedule during off-peak or with download limits.

• x265/HEVC: +100
• x264: -10 (Optional: This actively avoids x264 if an x265 exists)
• AV1: +200 (If your hardware supports it)

• Keep your 1080p library on x264 (broadest compatibility, least transcoding).
• Set a Custom Format for 4K: Score x265 or HEVC very high (+100) and x264 very low (-100). Use this only on your 4K quality profiles.