Just to toss my tidbit of info. My setup is in sig. Best I could do in my 3090 ftw3 ultra was right at 14000 in PR. With just about 30 minutes of messing with the kingpin my best PR is right at 15000. This is on the LN2 bios but nothing else besides just playing around in X1. Maxed power target, 140 core, 1100 memory OC. It holds a solid 2140-2160 boost clock and stays in the 45-48 degree range without any special cooling (no pumping in cold air or anything). I did set it up in a push/pull setup though.
Overall I'm happy with the performance jump from the ftw3 ultra.