Is the Macbook 64 bit?

[razyorv]

32bit CPUs can only access up to 4GB of RAM. 64bit goes way ahead. My question is; is the Macbook 64bit?

 

[EricNau]

Which MacBook? The current MacBook (Core 2 Duo)? ...Yes.

Of course, RAM is limited by more than just processor bits.

 

[razyorv]

Yes, the current. I didn't know Macbooks were 64bit... I thought it was only the pro line.

What, other than RAM, are the benefits of being 64bit?

 

[0007776]

the only other advantages that I know of is that if programs are coded for it then working with large files will be faster.

 

[razyorv]

Yeah, being able to access 17,179,869,184 gigabytes or 16 exabytes of RAM is quite a big advantage!

 

[flopticalcube]

64bit integer arithmetic is also faster on a fully 64bit CPU. No real-world advantage yet, however.

 

[Gosh]

Definitely is!

http://www.apple.com/macbook/intel.html

Intel 64 bit processors and the forthcoming 32/64 bit Mac OS X Leopard will fundamentally define Apple Mac's superiority and distinction over Windows PC.

The applications will catch up with the processors surely enough.