>>4096114It does well. When the XT-4 came out there was a lot of talk about how amazing it was at low light and honestly it probably really is better being Sony's state of the art at the time but it turns out there is some baked in NR and some different ISO ratings.
But here it is versus some BSI sensors. Samsung had their own and you can see it isn't as good though I really wish Samsung stuck around. I downloaded the RAW and ran the A6600 through very minimal noise reduction and it looks plenty competitive to me, even now. BSI does help but not nearly as much as with tiny sensors.