The ASRock RX 6900 XT Phantom Gaming D is one of the fastest variants too.
This is the fancy AsRock Phantom Gaming D model too, which brings a snazzy design and a faster 2340MHz boost clock (versus 2250MHz on the vanilla spec).
In terms of missing features, AMD’s new FSR 3 frame generation tech works fine on “last-gen” RX 6000 graphics cards like the RX 6900 XT - versus DLSS 3 which is only available for the latest series of Nvidia GPUs. Similarly, AMD’s Fluid Motion Frames, a kind ofmore limited but almost universal frame generationtech that doesn’t require developer input, was initially announced as being an RX 7000 exclusive but now works on RX 6000 cards too. The only thing you’re really missing out on is Anti-Lag+, a latency-reducing feature that is built in by developers versus vanilla Anti-Lag that which works more universally without developer input.
The big question here is whether the RX 6900 XT is better than the RX 7800 XT, which is in a similar price and performance class - you can get a very basic reference model for around$510 at Newegg, for instance, which ought to perform within five percent or so of the RX 6900 XT. I’d be tempted to go for the newer 7800 XT, as it’s a bit more power-efficient, but both cards are viable options I’d say, with both being capable of performance advantages depending on the game chosen.