Intel Core2 Extreme quad-core processor

Intel Core2 Extreme quad-core processor

When more is better—with four processing cores the Intel Core 2 Extreme processor delivers unrivaled performance for the latest, greatest generation of multi-threaded games and multimedia apps.There are processor with 45nm and 65nm technology with 4 cores and 2 cores.
The 45nm processors are QX9775(4 core),QX9770(4 core) and QX9650(4 core)
The 65nm processors areX6800(2 core),QX6850(4 core),QX6800(4 core),QX6700(4 core)