Shrinking X265 ((link))
Here are a few different drafts depending on the context you need (a technical guide, a casual explanation, or a quick summary).
NVIDIA NVEnc
and Intel QuickSync are faster than CPU x265, but they produce 20–40% larger files for the same visual quality. For shrinking, GPU encoding is the enemy. shrinking x265
And hardware decoders aren’t equal. Some cheap media players mishandle HEVC’s 10-bit color (common even in 8-bit rips), causing red shifts or posterization. The shrinker assumes you’ll never notice. But the hardware might betray you. Here are a few different drafts depending on
Conclusion: The Art of Aggressive Compression
Recommendation:
High Quality:
CRF 18 or lower retains more detail but can result in files larger than the source if the original was already highly compressed or grainy. And hardware decoders aren’t equal
