The 9070 XT is a little slower than the 7900 XTX in Tom's testing, and the 7900 XTX has 50% more CUs, bandwidth, and Infinity Cache.
The 7700 XT has 68.75% more CUs (54 vs. 32), 35% more bandwidth, and 50% more Infinity Cache (48 MiB vs. 32 MiB). If the 9060 XT 16GB can overcome that, it will be legendary. I think it will fall short... in rasterization. Just too many CUs in the 7700 XT. But ray tracing performance will be higher, you get 16 GB instead of 12 GB, and there's FSR4 support guaranteed.
The 9060 XT will be a good card that can live a long life with 16 GB, but it is pretty small, at 32 CUs again. Most of the good feelings towards it are going to be for undercutting the price of even the 5060 Ti 8GB. And that's only if there is enough supply to maintain the MSRP.