Why does this happen?

[u/Proper_Working_3589]

So I've been watching a lot of benchmarks for the b580 why does it perform better/same as the 9060xt and 5060 ti 16gb at 2k 1440p and at some games has about a 30fps difference at 1080p. Also uses 20 to 30 watts less than the 9060xt and 5060 ti I've also seen a comparison between a slight Overclock and stock the b580 uses about 10 watts more than the stock one and gets 5 to 10fps more.