Quote from: TruthIsThere on December 20, 2020, 08:25:25
Quote from: vertigo on December 20, 2020, 04:09:33
There's so little difference anymore with architecture size changes that it's not really that significant, and actual architecture often matters more. And any modern CPU is powerful enough that they're all going to be more than enough for most work and most people. So choosing/switching ecosystems simply based on the fact one has a 5nm CPU vs a 7 or 10nm one makes no sense.
So, that's why Apple is buying up all the 5N and 3N because advanced architecture "makes no sense?"
Stop sniffing that glue, bud.
Quote from: Mate on December 20, 2020, 10:12:19
#3 "There's so little difference anymore with architecture size changes that it's not really that significant," - you are joking , right? AMD doubled performance and improved battery when they jumped from 12nm to 7nm. Difference between 7 and 5 is not that big, still significant. 30% lower energy consumption is huge. Also chip would be 2x smaller so production costs should be lower or you can just add few cores. Now manufacturing cost matters a lot, thats actually one of major reasons why M1 is that powerful and can be cooled off even without fan.
Quote from: _MT_ on December 20, 2020, 11:13:10
"There's so little difference anymore with architecture size changes that it's not really that significant, and actual architecture often matters more."
At the very least, it changes transistor density. You can fit more in the same die. Or you can make more processors from a single wafer. Assuming similar yields, it would significantly improve supply for the same wafer allocation. Something AMD could really use. Availability of many of their products is simply laughable.
I didn't say there wasn't a difference, just not significant, certainly not enough to switch over to an entirely different ecosystem for it. As architecture size gets smaller, there's less difference between steps, which results in diminishing returns. As _MT_ pointed out, and as I mentioned, a big part of the improvements are with the architecture itself. Yes, a 5nm chip will be better than a 7nm one with the same architecture, but a 7nm chip with a better architecture can beat a 5nm one with a worse one. Size matters here, but it's not the only factor. I was simply stating that, and that it's not a good reason to switch from Windows or Linux to Mac.
And of course Apple is going to buy up 5nm and 3nm production, because they need it, simple as that. They're currently producing chips at that level, so they need the production to do so, and they're closer to 3nm than anyone else, so of course they're going to buy production for that, to work on moving to it. As the others will, or should, be buying production in their next step(s).
Smaller is of course better, and they should all be working on achieving that, but they should focus just as much, if not more, on improving their architecture itself. It's getting increasingly harder to go smaller, with increasingly smaller payoff, and while doing so can result in better yields, at first they will almost certainly be worse, until the process is mastered. Keep in mind, too, that during the past several years of Intel's tick-tock cycles, there was typically much more improvement when they changed the architecture itself whereas the improvement from a die shrink was less pronounced.