well looking around I found this.https://arstechnica.com/gadgets/2023/01/entry-level-m2-pro-macbook-pros-have-slower-ssd-performance-than-m1-versions/
Judging by what I've read though the consensus seems to be that most users wont actually notice it in real world use.
I'm currently dithering between a 1tb and 2tb Mac Studio. I know I can use external drives which are cheaper but I'm just wondering about machine longevity with a 1tb. The marginal cost difference between the two at that price split over say 6 or 7 years is not worth worrying about. I can pick up the studio now in 1tb form or wait weeks to get one with 2tb (and the dates seem to be moving out on all Macs across the board for delivery in the UK - not sure why).
Thanks, I’ll think about the terabyte one when it’s in stock.