How would the 64 bit version run on this rig?

Airbot said:

I have 8GB, still not as fast as I'd like it to be.

I have 8GB, and I'll be damned if I've ever seen the actual usage get close to 4GB, let alone 8. It's usually b/w 1800 and 2600 mb.

BTW, I have twice as many processor cores as you, and mine isn't fast enough either.

Just so you know you don't need over 4GB of memory to take advantage of a 64 bit OS it is just a great benefit that you can (as the OS has access to more memory addresses so can use more memory). the 64 bit version is just optimized to run on a 64 bit processor so it should work slightly faster than the 32 bit OS on the same system. Of course the more memory the better so get some more when and how you can.

wolfman said:

Just so you know you don't need over 4GB of memory to take advantage of a 64 bit OS it is just a great benefit that you can (as the OS has access to more memory addresses so can use more memory). the 64 bit version is just optimized to run on a 64 bit processor so it should work slightly faster than the 32 bit OS on the same system. Of course the more memory the better so get some more when and how you can.

That isn't completely true, even at 3GB of ram, the 32bit OS out performs the 64bit almost every single time. You NEED 4GB of ram for the 64bit to be FASTER than the 32bit would be.

That all being said, it would run faster than Vista on the same computer.