Somewhat not helped by the counterintuitively reversed numerical values of RF & CQ – RF goes 50‑>0 (worst‑>best), while CQ goes 0‑>100 (worst‑>best), at least on Handbrake 1.6.1 – took me a while to figure that out while scratching my head over seeing smaller and blockier files as I stupidly decreased the CQ value even further, d'oh! -) If it's even possible for any approximate correlation between the two values, obviously. MacBook Pro 14' M1 Max with 32Gb and macOS 12.2.1Ĭlick to expand.Sorry for a late question, but since the thread is still active, well:Īny idea if there are any roughly comparable values for Constant Quality between x264/x265 values and VideoToolbox values? Because using the same ballpark ~22 as with RF produces really over‑compressed files with VideoToolbox (10x smaller, but obviously totally blocky then). The results are eye opening for me and once again I am just looking at times, not final video quality. Once using VideoToolbox option then again using standard settings. I got the Big Bunny Buck video that the Handbrake team likes as a benchmark in both 1080p and 2160p formats then converted them to the same size H265 MKV format. It's just that the Max could do multiple encodes at once. This is the reason why encodes using these engines are the same speed regardless of M1 Pro or M1 Max.

Please see where they say VideoToolbox is using dedicated video encoding engines on the M1 Pro / Max chips.

Handbrake for mac m1