It will be interesting to see where this goes.
Intel hit the wall a while back now tsmc.
Get ready to use 2-3kw PSU or maybe they might start bundling with a generator.
Been saying this a while now but N7 / 7nm class nodes was the end of higher density (more chips per wafer) cancelling out the effects of higher node and development costs.
In the past when you go to a smaller node, the higher number of chips per wafer gives a cost per wafer
manufacturing benefit that is enough to cancel out inflation / complexity of development cost per chip.
N5 was where cost per die went up slightly vs N7. i.e. that cost to manufacture went up slightly, whereas in the past it would go down. So there's no longer a cost benefit to going to a new smaller node.
Like everything, this is going to bifurcate the market. The 'haves' will buy expensive devices with N3 / 3nm or smaller class chips in them, while cheaper devices will have N5 class chips in them.
Apple is already bifurcating their lineup with iPhone 14 using the N5 node A15 SoC, while the iPhone Pro uses the N4 (still 5nm class) node A16. We also see it with Zen 4 pricing.
We're going to see that again next year, only the high end iPhones will have 3nm class N3 node A17. Everything else will have the 5nm class N4 node A16. I think it will stay like that for a long time.