AMD Athlon II X4 640: 4-Cores On The Cheap

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Total System Power Consumption

We'd like to cover a few final data points before bringing this article to a close. Throughout all of our benchmarking and testing, we monitored how much power our test systems consumed using a power meter. Our goal was to give you all an idea as to how much power each configuration used while idling and while under a heavy workload. Please keep in mind that we were testing total system power consumption at the outlet here, not just the power being drawn by the processors alone.

Total System Power Consumption
Tested at the Outlet

The Athlon II X4 640 is a relatively power-friendly processor. Due to its higher clock speed, it consumed somewhat more power then the Athlon II X4 635 under load, but it was still one of the more power-friendly overall--only the Core i5-661 platform consumed less power.

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