Bruce

Thanks for that.

Seems Simon and I were a little crossed.

He went from a 500Mhz G3 Pismo to a 550Mhz G4 Pismo. I am using a 400Mhz G3 
Pismo and my mate was using a 550Mhz Pismo.

So the difference I noticed was bigger than Simon (the other one) did.

I have three options.

1. Keep my Pismo as it is, I mean it really is super quick anyway. I beats 
my sons G3 iMac 500Mhz hands down. 2. Find a cheap G3 500Mhz original Pismo 
daughter card and bump it by 25%. 3. Find a cheap G4 550Mhz upgrade and get 
not only 37% increase in processor speed but also a G4 in it to.

The bonus of a G4 is that I could then run Leopard on it. And yes I know it 
is below Apples minimum, but I have had it running on a 400Mhz G4 Titanium 
PowerBook and it was ok.

Simon

--- http://www.simonroyal.co.uk - Mac news, reviews, guides, upgrades, 
hacks and more... - http://www.nmug.org.uk - webmaster for Norwich Mac User 
Group - The box said requires Windows XP or better, so I bought an Apple 
Mac.


On Sep 30 2008, Bruce Johnson wrote:



On Sep 30, 2008, at 1:30 PM, Simon Royal wrote:

> Simon
>
> I wouldn't say there was a massive improvement. It certainly is  
> nippier and
> better at handling lots of things at once.
>
> But really the jump from a 400 to a 550 isn't that great even it it  
> was on
> the same processor spectrum. But a G3 400 to a G4 550 should be  
> quite a big
> jump in speed.

It depends. The G4 and the G3 are differentiated mainly by the  
presence of the Altivec vector co-processor in the G4. For  
applications that make specific use of the Altivec (things like  
ripping iTunes and rendering movies in iMovie, the speed differences  
will be quite large. For straight up CPU-bound stuff, there will be  
almost no difference. OS X shows an improvement because it does use  
the Altivec in some things.

Pretty much all the speed difference you saw, if it was day-to-day  
stuff, is the 150 MhZ difference between a 400 and 550 processor. A  
37% increase in clock speed is going to be quite noticeable.

If you're going from a 500Mhz G3 to the 550, it's not nearly as  
noticeable.




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