9070 Vs 9070 xt

Hi all! I managed to grab a Gigabyte 9070 OC @ $730 USD ( w/ tax) and an Asrock 9070 XT Steel legend @ $770 USD (w/ tax). I mostly play WoW, Nolvus Skyrim, Witcher 3, and other RPGs on high/Ultra @1440p. My delimma is I'm not sure which one to return. I'm running an i5-13400f with 32gb of DDR4 and a Thermaltake 650W psu. From what I've been reading, I'll need to upgrade my psu if I go with the 9070xt, so that will be an additional $75-$100 that I'll need to consider. At this point, It seems like my total cost would either be $730 for just the 9070 or $880 for the XT with a new psu. I'm really trying not to spend too much and I'm not sure if the XT is worth it. Any guidance would be appreciated.