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9 votes

What is the gain from 64-bit architecture?

One major benefit of having a huge address space is that you can represent all storage simply as an address. For example, my laptop has 16 GiByte of RAM and 1 TiByte HDD. With 64 bit addresses, you ca …
Jörg W Mittag's user avatar
8 votes

Is there a good reason to run 32-bit software instead of 64-bit on 64-bit machines?

The difference between 32 bit software and 64 bit software is the size of the pointers, and maybe the size of the integer registers. That's it. That means all pointers in your program are twice the s …
Jörg W Mittag's user avatar