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suman suhag's avatar

The assumptions made here are bassakwards. Computer processor chips over time use smaller and smaller sized transistors. As the transistor size goes down and and the binary voltage goes down, power decreases over the years. Today’s processors have multiple cores on one chip and the main factor in energy consumption is how the software utilizes all those cores. What we attempt to compute today is far more than in the past. Power for CPUs are limited by the size and thermal path away from the active layer. This puts all chips in roughly the same energy limit. Most chips are less than an inch square and the fan that you clip onto the chip can only do so much cooling via the thermal grease. The energy used is more about how many CPUs a data center is running and the AC units used to cool all those computers back down closer to room temperature. The environment will be fine if we stop polluting with our gasoline or diesel cars and comically oversized pickup trucks. The data center pollution could also include the IT guy’s drive to work in his beater.

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