
We’ve said repeatedly that iTunes wasn’t thread-optimized. It appears that this statement isn’t entirely accurate. The app is multi-threaded, but the "benefit" is pathetic.

The Lame MP3 encoder is also better off with a fast dual-core rather than a massive six-core processor.


MainConcept and HandBrake for video transcoding both scale well with additional CPU cores.
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Summary
- Scaling Down Gulftown: From Six Cores To One
- Turbo Boost And Our Test Platform
- Test Setup And Benchmarks
- Benchmark Results: Synthetics
- Benchmark Results: 3DMark And PCMark Vantage
- Benchmark Results: Applications
- Benchmark Results: Audio/Video
- Benchmark Results: Power Consumption
- Benchmark Results: Efficiency
- Normalized Power And Efficiency Results
- Conclusion