I'm afraid I went the other way. I have an AMD build, so I wanted a 6800xt or a 6900xt to go with it, however these were just gold dust.
So I thought, I can't find any at all, so there were a few 3090 cards come up on OCUK. So the fact there's nothing out there, I just got one! I know I just went for it.
Having installed the 3090 and played a few games, it's a great card. However, the heat coming off it was crazy, even in my very well ventilated case with multiple fans. (Lian-LI 011 Dynamic XL)
However, I still had that nag in my mind about the 6800xt/6900xt, but they are just non existent.......
Last week, browsing as you do, on here and the store, I just looked at the AMD cards and the Asus TUF Gaming 6900xt was available. Without even thinking, add to basket purchase and done!!!!
When it arrives, I install it and obviously play a few games. I'm well happy with it. With my AMD setup I've enabled SAM, which is good. The heat is non existent now in my case as if I haven't got a GPU at all. The games look nearly the same as the 3090, I can't tell the difference really. I'm not playing 4k, but at 1440p on a 144Hz Asus Strix 32' monitor with Freesync.
I have to say I'm very happy with the 6900xt. I'm not mining the card, it doesn't have a couple of features the 3090 has, ones that aren't universally adopted yet, though. I haven't had any issues with the drivers and I like the way the driver software is set out. The card is plenty fast enough to play any game I throw at it, so good choice with my setup.
So I'm afraid, the 3090 has gone on the obvious auction site, so hopefully it will sell at somepoint?