are core 2 duo 64 bit?
The Intel Core 2 Duo (also known as Core2 Duo) notebook processor is a 64 bit dual core processor. This means two processor cores work inside a Core 2 Duo in parallel. ... However, the notebook version runs with a lower voltage (0.95 to 1.188 volt) and a lower front side bus (1066 vs. 667 MHz).