It is a very specific question, I have a 2019 i7 quad core 16GB 1TB 13" MBP...It replaced my 2018 i9 hexcore 32GB 1TB 15" MBP. Other than rendering out a video the 13" feels quicker for most of my tasks, less fans as well. It seems to be less throttled.
But I haven't got any 61MP raw files to try it out...Should be plenty fast though.