Even 4k monitors are relatively rare and most monitors today are still 1080p, 60 Hz. Yes, you don't need a 5090 to play games on that, but 5090 is a very niche

Even 4k monitors are relatively rare and most monitors today are still 1080p, 60 Hz. Yes, you don't need a 5090 to play games on that, but 5090 is a very niche product, while x060 cards are the overwhelming majority. 8k rendering is needed just for the 5 or 6 people that wants it.