I'm considering buying one of the lower end macbook pros (2.3ghz base / 3.6ghz turbo). The things benchmarks/info I'm having a really difficult time finding are: 1. How long do these devices typically sustain the burst mode for? 2. When not running in burst mode, what does performance look like? I'm hoping someone has benchmarks on any long runs of things (handbrake encoding, xcode compilation times, blender renders, slow photoshop or lightroom filters, etc). I guess I just don't trust geekbench and other synthetic benchmarks since they are really comparing turbo vs turbo and not base clock vs base clock.