3 ms·
I see two main things behind it: 1. they are the only ones who have 5nm chips because they paid a lot to TSMC for that right 2. they gave up on expandable memo
by gameswithgo 6y ago
I see two main things behind it:
1. they are the only ones who have 5nm chips because they paid a lot to TSMC for that right
2. they gave up on expandable memory, which lets them solder it right next to the cpu, which likely makes it easier to ship with really high clocks. and/or they just spent the money it takes to get binned lpddr4 at that speed.
So a good cpu design, just like AMD and Intel have, but one generation ahead on node size, and fast ram. Its not special low latency ram or anything, just clocked higher than maybe any other production machine, though enthusiasts sometimes clock theirs higher on desktops!
- mtgx 6y agoIn other words: money. Throwing money at the (right) problems made them better than others. "But doesn't Intel have a lot of money, too?" Sure, but Intel has also been running around like a headless chicken this past decade (pretty much literally, since Otellini left) combined with them getting very complacent because they had "no real competition."
- epistasis 6y ago> So a good cpu design, just like AMD and Intel have The design seems to be very different, in that it's far far wider, and supposedly has a much better branch predictor. > fast ram Is that a property of the RAM clock, or a function of a better memory controller? The RAM certainly doesn't appear to have any better latency.
- gameswithgo 6y agoRight, latency isn't (much) affected by a higher clock rate. Getting ram to run fast requires both good ram chips and good controller/motherboard. and yes, obviously apples bespoke ARM cpu is quite a bit different than Zen3 Ryzens x86 cpu, but I'm not sure it is net-better. When Zen4 hits at 5nm I expect it will perform on par or better than the M1, but we won't know till it happens!