Turbo Boost 2.0.Say you’re using a processor-intensive application like Aperture 3 or Final Cut Pro that benefits from extra power. Turbo Boost is a dynamic performance technology that automatically increases the speed of the active cores — up to 3.4GHz. Turbo Boost 2.0 is even more dynamic and efficient. By shifting core frequency in smaller increments than before, it allows the processor to manage performance without sacrificing efficiency. All this takes place behind the scenes, so your work just goes smoother and faster.
Hyper-Threading.Hyper-Threading is now standard on every MacBook Pro. This technology allows two threads to run simultaneously on each core, so Mac OS X recognises eight virtual cores on a quad-core processor and four on a dual-core processor. When you’re running multiple applications at once, the processor spreads tasks more evenly across a greater number of cores.
All in all, this looks like a serious bit of machinery....the price is a bit steep, starting at around a £1000 for the 13 inch and going up to £2100 for the 17 inch, but as they say, quality is worth every penny!!