If the RTX 4090 and RX 7900 XT and XTX have the same amount of GDDR6, why does the 4090 outperform the 7900?

Question

I’ve been looking at upgrading my PC in a few months, not to anything this powerful (but a man can dream) and in looking at GPU comparisons I see that the 4090 tends to be streets ahead of the RX 7900’s in terms of performance. Why is that if they have the same amount of memory?

In: 2

Answer 1

Because memory is not everything. It’s just like a car. Just because two cars have the same engine doesn’t mean they will be as fast. If one is heavier the other will be faster.