I certainly did not mean to imply that everything on the system would run
twice as fast.
I only said a 64 bit OS can move data twice as fast since it is using 64 bit
registers instead of 32 bit registers and that many of the 64bit
instructions are the equivalent of two 32 bit instructions.
This does not mean that everything the OS does runs twice as fast since
other OS functions such as physical I/O and context switching don't run any
faster. And as has been pointed out by other posters 32 bit application
programs being run by users actually run slightly slower.
"dennis" <1@xxxxxx> wrote in message
news:#LJYzPR#JHA.1336@xxxxxx
Quote:
> Curious wrote: Quote:
>> The 64 bit hardware can move data twice as fast and can execute the
>> equivalent of two 32 bit instructions per machine cycle.
>
> You make it sound like you get twice the speed just by running a 64bit
> application...