![]() The mobile versions of the Core i5 and i7 used in the MacBook Pro differ from the desktop version found in theĢ7-inch iMac, which has four physical processing cores. Turbo Boost can increase the clock speed of the 2.4GHz Core i5 processor up to 2.93GHz, for example. Turbo Boost, allows the processor to speed up for a short period of time when necessary, or shut down unused cores and give the resources to the cores in use. ![]() The processors have dual cores, but OS X treats them as having four cores. Hyper-Threading, which uses virtual cores to double the amount of processing cores presented to the operating system. The Core i5 and i7 processors have a few interesting performance features, including The new 15-inch MacBook Pro models drop the Intel Core 2 Duo processors (used in Apple’s laptop line since late 2006) in favor of Intel’sĬore i5 and Core i7 mobile processors. ![]() At the top of the line sits a $2199 model with a 2.66GHz Core i7 processor and a 500GB drive its $2299-predecessor had a 2.8GHz Core 2 Duo model with 4GB of RAM, and a 500GB hard drive. The next step up the line is a $1999 system with a 2.53GHz Core i5 processor and a 500GB hard drive, which takes the place of a $1999 2.66GHz Core 2 Duo-based system with 4GB of RAM, dual graphics, and a 320GB hard drive. The $1799 entry-level system comes with a 2.4GHz Core i5 processor and a 320GB hard drive it replaces a $1699 model with a 2.53GHz Core 2 Duo processor, 2GB of RAM, a 250GB hard drive, and integrated graphics only. ![]()
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