What are the pros and cons of installing a 32 bits vs a 64 bits version of Debian on the same PC ?
Is Squeeze different than Lenny for that matter ?
Lars Wirzenius [ Editor ]
64-bit works better if you have more than 4 gigabytes of RAM. Other than, there is no real difference for most people.
There certainly are other differences, of course. For example, the 64-bit mode has more CPU registers, which means some computationally heavy code runs faster. 64-bit programs also need a bit more memory for bigger pointer values. However, for most people, these don’t usually matter. If you have a specific application that you worry about, try it both ways and see which is faster for you.