Intel is about to launch a new Core i5 processor later this year, the Core i5 580M, and it will be replacing the -540M chip which is now available on the market.
The current i5 540M processor has a clockspeed of 2.53Ghz and the turbo overclock speed is reported to 3.06 GHz. Intel says that the new 508M processor will be faster and comes with a clockspeed of 2.66GHz and turbo overclock speed of 3.33GHz. The graphics core of the 580M model will spin at 500MHz and it can be overclocked at 766MH.
The new Intel Core i5 580M is expected to enter the market in the last quarter of 2010.