Re: Compare Apple to Orange (err.. I mean Pentium)

[Tom Burke]

On Wednesday, March 24, 2004, at 03:54  pm, G-Books wrote:

Subject: Re: Compare Apple to Orange (err.. I mean Pentium)

A long time ago, a P3 had to be almost double the clock speed of a G3
to be equal (in some things).  When the P4s came out, they had to be
double the speed of a P3 to compete with the P3!   Part of that was
because the P4s had a longer pipeline to get a higher clock speed,
and part was because right after it was released the compilers had
not been optimized for the P4.   The G4 is faster than the G3 for
some things--and with those things its a LOT faster.
So a 1.2Ghz G3 should be 4 times faster than the 600Mhz P3, and for a
few things, the G4 will be maybe 10 times faster  on some things.
But this all depends on cache size, and location and a bunch of other
things---like your disk drive.   The different G4 laptops have
different speeds unrelated to the chip speeds.
If you have a 600MhzG3 it's probably really old, and so everything on
the new machine will be a lot better in every way.
You have to hand it to Intel (and AMD, for that matter) - they've 
overcome all the (theoretical) limitations and handicaps of their 
original CISC design by a) significant redesign yet somehow maintaining 
compatibility, and above all b) pushing the cpu speed up to 
extraordinary levels.

Hopefully IBM will be able to emulate this aspect of Intel's 
performance with regard to the PPC 970 cpu and its siblings.

Tom Burke

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Re: Compare Apple to Orange (err.. I mean Pentium)

[Hal]

On Mar 23, 2004, at 9:26 PM, Timothy J. Luoma wrote:

On Tue, 23 Mar 2004, Clyde Kahrl wrote:

A long time ago, a P3 had to be almost double the clock speed of a G3
to be equal (in some things).  When the P4s came out, they had to be
double the speed of a P3 to compete with the P3!
You lost me there in that last sentence.  Did you mean P4 or G4?  I 
think
you meant "When the G4s came out they had to be double the speed of 
the P3
to compete with the G4"
No, when the P4 fist came out, various benchmarks showed that the P4 
was slower than the P3 when compared at identical clock speeds. 
Significantly slower. They've ramped up the clock speeds to compensate 
for this.


Check out XLR8  your mac.
As a place to buy a mac or are you suggesting their products?  Sorry, 
my
brain is still a bit lagged I fear.

No, www.xlr8yourmac.com is a great resource for the Mac community. 
Check it out for info on CPUs, hard drives, etc.

-Hal

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Re: Compare Apple to Orange (err.. I mean Pentium)

[Timothy J. Luoma]

On Tue, 23 Mar 2004, Clyde Kahrl wrote:

> It's really hard to compare G4s to P3s because of the intervention of 
> things like operating systems, software, buses, disk drives, and so 
> forth.   

Sure, understood.  the "Apples to Oranges" does apply...
 
> A long time ago, a P3 had to be almost double the clock speed of a G3 
> to be equal (in some things).  When the P4s came out, they had to be 
> double the speed of a P3 to compete with the P3!  

You lost me there in that last sentence.  Did you mean P4 or G4?  I think 
you meant "When the G4s came out they had to be double the speed of the P3
to compete with the G4"

 
> So a 1.2Ghz G3 should be 4 times faster than the 600Mhz P3, and for a 
> few things, the G4 will be maybe 10 times faster  on some things. 
> But this all depends on cache size, and location and a bunch of other 
> things---like your disk drive.   The different G4 laptops have 
> different speeds unrelated to the chip speeds.

 
> If you have a 600MhzG3 

650Mhz Pentium3 actually


> it's probably really old, and so everything on 
> the new machine will be a lot better in every way.

The machine is 4 years old (or will be in July) running WindowsXP with all 
the eye candy turned off.


> Check out XLR8  your mac. 

As a place to buy a mac or are you suggesting their products?  Sorry, my 
brain is still a bit lagged I fear.

Thanks for your time

TjL


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Re: Compare Apple to Orange (err.. I mean Pentium)

[Clyde Kahrl]

It's really hard to compare G4s to P3s because of the intervention of 
things like operating systems, software, buses, disk drives, and so 
forth.   I never cease to be amazed at how one system can be clearly 
superior to another on a bunch of photoshop filters, and then get 
totally clobbered on another filter.   (I saw one comparison where 
photoshop 7 was beating photoshop cs;  they called up Adobe and Adobe 
said: Oh Yeah, we dramatically changed that filter and upgraded the 
routines and resolution etc and that made it slower."   So there you 
go.)

A long time ago, a P3 had to be almost double the clock speed of a G3 
to be equal (in some things).  When the P4s came out, they had to be 
double the speed of a P3 to compete with the P3!   Part of that was 
because the P4s had a longer pipeline to get a higher clock speed, 
and part was because right after it was released the compilers had 
not been optimized for the P4.   The G4 is faster than the G3 for 
some things--and with those things its a LOT faster.

So a 1.2Ghz G3 should be 4 times faster than the 600Mhz P3, and for a 
few things, the G4 will be maybe 10 times faster  on some things. 
But this all depends on cache size, and location and a bunch of other 
things---like your disk drive.   The different G4 laptops have 
different speeds unrelated to the chip speeds.

If you have a 600MhzG3 it's probably really old, and so everything on 
the new machine will be a lot better in every way.

Check out XLR8  your mac. 

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Compare Apple to Orange (err.. I mean Pentium)

[Timothy J. Luoma]

Is there anywhere I can some sort of a 'real world' comparison between a
Pentium and G4?  I'm not looking for crazy "Pantyum Sux" basically I'm
just trying to figure out how much faster a G4/1.25GHz would be compared
to a 650mhz/Pentium 3)
I don't need to be convinced that G4/G5 is better than Pentium.  I
understand the megahertz myth, I'm just doing my comparison shopping and
consideration.
Looking at http://www.barefeats.com/pvp.html it looks like there is a big
jump between G4 and G5... but of course no one knows when the G5
Powerbooks are coming out.
TjL

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