AFAIK no one is testing the XT models enough yet to have all 3 Sapphire XT cards to compare, as there is a model between the one I showed and one you ordering.
|Radeon RX 7900XT||
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So XT costs 899
Pulse costs 979.99
Nitro costs 1049.99
Really, if you only have one card and don't have anything to compare it against, and don't expect exact results as a friend, then it doesn't matter if some are faster, just buy the one you can afford. I think when I ordered the only choices I had were Pre orders on the Red Devil. If I tried now, I would have all 3. I would still get the same one.
Yes, I do pay more... The Red Devil XTX is $2000 but the 4080 starts at 2100 here. Australia is fun to live in.
I have no idea how much the Nitro would cost here... no one seems to have them here.
Its likely main difference between them will be noise. The reference cards are really loud if you run them at high resolutions in games, but from what I can tell that is after a few hours. The custom cards have better cooling and can run quieter and get higher speeds.