I wish it was more clear what the OG OC stands for but for anyone wondering, it is a 4090 on a 3090 PCB. With that said it runs everything on fully maxed out settings with no issue and stays cool doing it. I haven't noticed any reason not to get it.
This card is an absolute monster. I mean what else can be said? Cooling is pretty good. Has no issue staying under 41c at idle with the fans off, and under 60 at load with the fans at 70-75%. Stock configuration the card seems to consume anywhere from 280-320w while gaming. 15w at idle. Haven't heard any coil whine yet.