The number one priority for this generation of Radeon GPU is "improving performance in the areas that gamers care about most." ...
but the new GeForce RTX 50 series GPUs will offer far more performance-per-watt of the leading RTX 4090 and RTX 4080 SUPER graphics cards. Another exciting part to see unravel in the near future.
Nvidia's CUDA 12.8 release notes indicate that support for the older architectures is now considered "feature-complete" and will be frozen in an upcoming release.
And their performance could be good enough that they could still be very efficient cards in terms of performance per watt. But if you ... supply along with your new graphics card.