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[Anand] ARM's Cortex A7: Bringing Cheaper Dual-Core & More Power Efficient High-End D

post #1 of 5
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Quote:
How do you keep increasing performance in a power constrained environment like a smartphone without decreasing battery life? You can design more efficient microarchitectures, but at some point you’ll run out of steam there. You can transition to newer, more power efficient process technologies but even then progress is very difficult to come by. In the past you could rely on either one of these options to deliver lower power consumption, but these days you have to rely on both - and even then it’s potentially not enough. Heterogeneous multiprocessing is another option available - put a bunch of high performance cores alongside some low performance but low power cores and switch between them as necessary.
rest of article

This seems pretty cool that they can switch cores on the fly. Too bad it doesn't seem like it can use both A15 and A7 cores during times of need (although I don't think smartphone or tabletss will need that kind of power).
    
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post #2 of 5
Looks like nVidia got their first.
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post #3 of 5
Quote:
Originally Posted by Lime View Post
Looks like nVidia got their first.
I was going to ask. Isn't this what the new Tegra does too?
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post #4 of 5
Why are they going backwards with their numbers? Anyways, it looks good.
     
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post #5 of 5
Quote:
Originally Posted by Cheetos316 View Post
rest of article

This seems pretty cool that they can switch cores on the fly. Too bad it doesn't seem like it can use both A15 and A7 cores during times of need (although I don't think smartphone or tabletss will need that kind of power).
In the article, it says that SOC makers can choose to show both cores to the OS.
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Overclock.net › Forums › Industry News › Hardware News › [Anand] ARM's Cortex A7: Bringing Cheaper Dual-Core & More Power Efficient High-End D