Rainbows and Unicorns. If you think that you'll get magical new experience thanks to 15~20 times higher data throughput from storage without actually loading 15~20 times more data per second for prolonged amount of time, you are mistaken. Game that needs 8GB/s storage is game that can't cache those data at lower speed. That means, loading, processing, displaying and discarding huge amount of data every second. What's storage capacity in consoles again? How big is that game, which just junks up to 8GB of data each second, going to be? Will it be transcendental gameplay? No. Would it look better than what 52CUs RDNA2 delivers on PC? No. Would there be faster loading times? Yes, a bit. But nothing revolutionary.