Intel has debuted its new Core i5 processor, boasting about 731-million transistors.

Codenamed Nehalem, the Core i5 has four processing cores per chip, doubling the capacity of mainstream dual-core desktops.
Each core can handle two simultaneous threads.
The Core i5 is targeted at demanding multimedia tasks.
The chip follows the Core i7 family and precedes the Core i3, set for launch next year.