Something noteworthy is the higher nm tend to be a bit faster than the smaller nm, so Samsung's 8nm isn't going to be slower than TSMC's 7nm. The reason lower

Something noteworthy is the higher nm tend to be a bit faster than the smaller nm, so Samsung's 8nm isn't going to be slower than TSMC's 7nm. The reason lower nm is better, beyond cost savings, is heat output and power consumption. If heat becomes a problem, the chip has to limit itself, as we're seeing with laptops. Nvidia's new cooling solution seems to fit the bill just fine, so 8nm is no problem. I suspect the next generation is going to be on 7nm, is going to be a bit faster and will consume a fair bit less power, which will be nice, especially if you plan on training neural nets all day.