Ohh I see but it shouldn’t be too much of a difference right?Between these two links;
https://www.gigabyte.com/bd/Graphics-Card/GV-R56XTGAMING-OC-6GD#kf
and
https://www.gigabyte.com/bd/Graphics-Card/GV-R56XTGAMING-OC-6GD-rev-20#kf
looks like there's a bump in the frequencies and the cooler looks slightly different.