We'll probably never hear an official justification for why Apple only put 512MB of RAM in the iPhone 4S. But you know what? They don't need one. Because you'll hardly be able to tell. Here's why.
Live Long and Prosper
The more RAM you pack in a device, the more power it uses (at least until the next generation of RAM comes along, then it resets and starts all over again). For decades, power consumption was a secondary concern for gadget hardware and software engineers. They had an unlimited supply of energy piped through a cord. But now that battery-powered devices have become our most vital trinkets, how long that device can live without a recharge doesn't just affect performance—in a lot ... »read more

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