Hardware reviewers rarely benchmark 10 series GPUs anymore when they wanna compare them to the latest hardware, but 10 months ago HardwareUnboxed pitted a 1080 against an RX 6600 over 51 different games and found that the 6600 was on average 20% faster @1080p. 1 month ago they reviewed the 7600 and found over 15 games @1080p that the 7600 was ~8% faster than the 6600.

I upgraded to a 6650XT about half a year ago and i think its about 30% better than the 1080. 7600 is about 5% better than 6650XT, so not a huge upgrade tbh.

Going based off the values listed here https://www.tomshardware.com/reviews/gpu-hierarchy,4388.html

Same question but against a 1070 :-)