The BIONZ XR engine, also used in the Sony Alpha 1 and Alpha 7S III models, provides up to an 8x increase in processing speed. The latest sensor, processing engine, and AI-based autofocus work in tandem with cutting-edge still-photography and moviemaking technology to create a fresh, dynamic imaging experience.
This Is a ten year upgrade for me, from the A7r. Fantastic to use the updated features. I have it matched to the Sony GM 70-200 f 2.8 series 2. Lightning fast and so accurate . get it if you can.......