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AMD's Bulldozer Architecture: Overclocking Efficiency Explored

Combined Efficiency Test Results

Looking at the overall picture of single-threaded and multi-threaded benchmarks, the result is very clear. Our test system runs most efficiently when it's undervolted, and it's slightly faster than the system at its factory settings.

If you care about energy efficiency at all, again, overclocking the FX processors is going to be disappointing.