Not only is everything smaller, but the codec looks better. Compression artifacts when AV1 is really pushing it at lower bitrates are more like… pointillism? They resemble grain instead of the fuzzy squares you can get with 264 or 265, and it is especially better in dark scenes.
But it looks much worse at higher bitrates. H265 can get decent bitrates and have no visible difference from the original. AV1 loses a bunch of quality right out of the gate. If you are wanting to archive footage I think h265 is much better.
The newer iPhone models actually capture their images as JPEG XL and they have retired their HEIC images. All of Apple’s software has full native support for JPEG XL as well.
Not only is everything smaller, but the codec looks better. Compression artifacts when AV1 is really pushing it at lower bitrates are more like… pointillism? They resemble grain instead of the fuzzy squares you can get with 264 or 265, and it is especially better in dark scenes.
But it looks much worse at higher bitrates. H265 can get decent bitrates and have no visible difference from the original. AV1 loses a bunch of quality right out of the gate. If you are wanting to archive footage I think h265 is much better.
The newer iPhone models actually capture their images as JPEG XL and they have retired their HEIC images. All of Apple’s software has full native support for JPEG XL as well.