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You're probably not using a desktop CPU with the same wattage. If Apple makes a 40 watt ARM laptop CPU, it might behave similarly to the x86.
by ynniv 8y ago
You're probably not using a desktop CPU with the same wattage. If Apple makes a 40 watt ARM laptop CPU, it might behave similarly to the x86.
- jbk 8y agoThis is 100% correct. But the article does not speak only about perf/watt, but absolute perf too.
- SomeHacker44 8y agoI am not a hardware engineer, but my guess is that making a high performing single digit Watt processor may Take different skills than doing the same thing than a 15-28-45-90-135-160W (or more) sustained TDP CPU. My only point is that assuming Apple makes the best low power CPUs should not necessarily imply they can make good high power CPUs. They may have to build up the competency over time just as they did in the initial iterations of the A series.
- Symmetry 8y agoOnce you're making wide out of order application processors the skills are pretty much the same for either. But it does take quite a while to do a new architecture from scratch and you would almost need to do just that to re-design the A12 for such high power targets.
- phkahler 8y agoOn workloads that scale well with core count (like video) that should be trivial. You go with 4x the cores and 4x the power and you're there. The software industry has been struggling for decades to make it easier to write multi-threaded code and has been making inroads only recently for software that isn't trivial to parallelize.