Advanced Micro Devices Inc (AMD)

[kpf]

aixman

Nope. Recompiling the code in 64 bits should get you 0-15% slowdown. That is normal due to the larger variables. Extra registers on AMD64 give some of the lost performance back, sometimes more than what was lost when going to 64 bits. System libraries is the OS concern, and it seems like they can add a little to the slowdown. However, all this is well worth the extra address space!

Hmm. "Slowdown", "system libraries can add to slowdown", "extra registers on AMD-64 give some of the lost performance back".

I am sure what you say is accurate as we can see exactly this picture in the benchmarks for AMD-64 versus 32-bit code.

Maybe I made an even bigger misconception? There is no development to expext here at all? That's really it? I am kind of alert now...

Hell, if the public audience will perceive it like that, their questions would certainly be
"Where is the beef with all this AMD-64 thing?"
"That's what you really want me to pay a premium for?"

Could you elaborate what exactly is the benefit of the extra adress space for the users of AMD-64? (I'm pretty sure they would not care at all of what the benefits are from a programmer's viewpoint).

Thanks.