Techiton

Intel's 2010 core processors for mobile platform will be given an upgrade in the fourth quarter this year. The Core i5 580M will be the fastest Core i5 for laptops when released. Currently, the Core i5 540M is the fastest in this segment and is clocked at 2.53 GigaHertz (3.06 GHz with turbo boost).

The 580M is based on the 32 nanometer processor technology codenamed Arrandale, while the integrated graphics is 45 nanometer based. The specifications are listed below.  

Core i5 580M Specifications:
Speed: 2.66 GHz
Turbo Speed: 3.33 GHz
Cores: 2 (4 threads)
Cache Size: 3 MB
Memory controller: DDR3 800/1066 MHz
Power TDP: 35 W
Price: n/a

Source: gadgetsteria.com