On 18 Apr 2004 12:13:28 -0400, Rich <SrP### [at] ricoswebcom> wrote:

>What's being written 
>is that a program compiled to 32bit will run at simliar speeds on an AMD 
>XP and an AMD64 rated similarly.  When that same program is compiled to 
>64bit, using the optimizations intended for 64bit, the program will run 
>significantly faster on the 64bit processor (and not at all on the 32bit 
>processor).

I basically read this in the following way: the 32-bit core of the
AMD64 is identical to the Athlon series (XP, MP, Barton, Thoroughbred
...) and in addition the AMD64 has some 64-bit extensions like more
registers, enhanced instruction set (maybe), different memory
addressing, perhaps even a better memory caching scheme... Basically
in 32-bit mode it's just slightly better than the Athlon (higher bus
speed, larger and faster cache, better and more integrated core). I
may be entirely wrong here but this is the conclusion I am led to by
the statements above.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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