Apple the new MacBook Pros end it has included Quad Core CPUs into their notebooks. The 15" and 17" models offer Quad Core CPUs using the Intel 2.2GHz Quad Core 2720QM and While many applications may not take advantage of all 4 cores, these new Sandy Bridge processors include Intel's Turbo Boost 2.0 which should increase the speed of the remaining cores when the others are underutilized.
Intel Turbo Boost Technology 2.0 automatically allows processor cores to run faster than the base operating frequency if it's operating below power, current, and temperature specification limits.The maximum Turbo clock speeds for the 2720QM and 2630QM are 3.2GHz and 2.9GHz respectively.
Apple has also introduced a hybrid Thunderbolt/mini Display port on the new MacBook Pros. This represents Intel's Light Peak technology which is said to offer high speed connections and is expected to replace the need for USB 3.0.
The new models are at the Apple Store:
-17" 1920x1200 Display. 2.2Ghz Quad i7. 4GB RAM. 750GB HD. AMD 6750M 1GB. $2499
-15" 1440x900 (1680 option) Display. 2.2GHz Quad i7. 750GB HD. AMD 6750M 1GB. $2199.
-15" 1440x900 (1680 option) Display. 2.0GHz Quad i7. 4GB RAM. 500GB HD. AMD 6490M 256MB. $1799
-13" 1280x800 Display. 2.7GHz Dual i7. 4GB RAM. 500GB HD. Intel HD Graphics. $1499
-13" 1280x800 Display. 2.3GHz Dual i5. 4GB RAM. 320GB HD. Intel HD Graphics. $1199
Source: Full specs available here
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