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The assumption you're making is that if Intel designed a new chip from scratch it would "meet it's general performance promises". I don't think this is as easy
by microarchitect 15y ago
The assumption you're making is that if Intel designed a new chip from scratch it would "meet it's general performance promises". I don't think this is as easy it sounds.
- hga 15y agoGiven how much simulation they do ahead of time, especially if the chip is lower in CPU power (less expensive to simulate) I would actually expect them to be able to hit their targets/promises.
- microarchitect 15y agoIt's a reasonable expectation, but I've seen a few different chips tapeout and all of them missed their performance targets by varying amounts. There are just too many things that can go wrong, and unfortunately quite a few of them usually do. You're right that the low-power ones probably have more accurate simulations than the high-end ones.