[OT] Re: [ale] Ummmmm Apple

[Matthew Macumber]

On June 24, 2003 01:44 am, Stephen Turner wrote:
> have you looked at the details of the g5 compared to g4? the g4 if im not
> badly mistaken is 128 bit where the g5 is 64. the g4 was capable of 9.3?
> gigaflops where the g5 is estimated at 8 altho they did add some math
> stuff to the processor it seems its nothing more than the ibm processor
> from 2001 with some g4 enhencements. if im wronge ill be first in line to
> but a g5 laptop! but i believe the g4 even at 1 ghz is equal to the g5
> 2ghz! hate to burst your bubble :( im about to go over the tech specs,
> what ive gatherd so far was directly off thier site. keep me up dated if
> you find out anything facinating!
>
> =====
> *//  No cows were injured in the making of this message *//
>

Sorry, I'm going to have to disagree.
The G4 only had 32-bit data path and registers, while the G5 and 64-bit path 
and registers. The 128-bit part is just the Velocity Engine.

I can't seem to find any flop specs for the G5, but based on some 
SPECfp_base2000 data, the G5 is 2.3x as fast clock per clock than the G4.

Yes, You can consider the G4 to be a Power4 processor with "improvements", but 
you can also consider a Pentium 4 to be a 386 with "improvements". 

The main advantage of the new systems is the all of the I/O systems are much 
much faster. With dedicated bi-directional dedicated busses for pretty much 
everything.

-matt

Sources:
http://a1264.g.akamai.net/7/1264/51/d297fb89c825b9/www.apple.com/g5/pdf/G5_Processor_WP_062303.pdf
http://www.heise.de/ct/Redaktion/as/spec/ct0205182/G4_866MHz/CFP2000.005.html
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