[X4U] Tiger & 64-Bit Applications...

DZ-Jay dz at caribe.net
Fri Apr 15 07:23:20 PDT 2005


Richard Gilmore wrote:
> What makes the G5 chip so much faster than the G4 if the "bits" aren't so
> much of a factor?
> 

	First, I'd like to clarify that I didn't imply that the bits are not 
much of a factor.  I tried to express that the bits are just as much a 
factor as many other elements or features, and that they should be 
considered as a whole.  My point was that assuming that a G5 or Tiger 
upgrade was not worth it, simply because not *all* Tiger apps run as 
native 64-bit applications -- i.e. considering the bit-ness only, as it 
were -- was wrong.  There are still plenty of architechtural 
improvements, both in the G5 *and* Tiger.

	But, since you ask, what makes the G5 chip faster? well, for on thing 
the 1.25GHz frontside bus, the 64-bit optimized execution core, 2 
double-precision FPUs.  Also, keep in mind that, as explained in other 
posts here, the math and core libraries of Tiger have been optimized to 
take advantage of the 64-bit technology of the G5.  It is expected that 
Panther will execute faster on a G5, but Tiger will be even *faster*.

	dZ.


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