I have a device info live wallpaper, that allows me to keep track of my GS4 Performance as I use it. In terms of CPU there are rare instances that I will ever need over 1.3 Ghz. The highest I can remember is 1.5. I think the big issue is understanding all the functional bottlenecks. A limited Wi-Fi connection can make allthat excess CPU just go to waste. Incorrect time-motion-space usage with your fingers is the major functional bottle neck that I see. No one really talks about this though. My thoughts are that a person should go through and measure all parts of the process that can get bottlenecked, before looking at the hardware specifications.
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