Thunderbolt is 12 times as fast as FireWire 800, over 20 times as fast as USB 2.0, and twice as fast as USB 3.0, which Apple seems in no hurry to adopt. The hot new technology this time is Thunderbolt, a 10 Gbps data connection that uses the Mac’s Mini DisplayPort. As with last year’s models, these CPUs support TurboBoost, which lets individual cores run beyond their rated speed, and hyperthreading, which lets the each core appear to the operating system as two cores. The Early 2011 15″ and 17″ MacBook Pro models have moved from dual-core CPUs to quad-core, which makes them a lot more powerful despite lower clock speeds.
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