G4 1.45ghz equal to ? in P4?

Mac_Maniac

macrumors newbie
Original poster
Aug 5, 2004
3
0
Vancouver, WA
Hey all,

What is a G4 1.45GHz proccesor equal to a P4? Like speed. The guy at the mac store sais a 1.8GHz G5 is equal to a 4.6GHz P4. I dunno if it is or not. But even an ibook with G3 800MHz feels faster then an 800MHz PC proccesor. I hear Mac proccesors work differenty. So what speed you think it euals up to? Got any links? I want to get an emac.
 

mad jew

Moderator emeritus
Apr 3, 2004
32,194
6
Adelaide, Australia
Easy answer: it's too hard to say, both processors have their merits in different operations and that's before we even account for that fact they run completely different software (for the time being). :)
 

QCassidy352

macrumors G4
Mar 20, 2003
10,673
2,736
Bay Area
Mac_Maniac said:
The guy at the mac store sais a 1.8GHz G5 is equal to a 4.6GHz P4.
Even if you mean a 3.6 P4, which is the fastest available, that's laughably false. I'm as much of a mac fan as anyone, but let's be realistic.
 

dmw007

macrumors G4
May 26, 2005
10,635
0
Working for MI-6
I would say that a 1.42GHz G4 would probably be equal to a 2.53-2.8GHz pentium 4. But as it has been already stated, different flavors of processors are going to be faster/slower at certain tasks.
 

AtHomeBoy_2000

macrumors 6502a
Feb 3, 2005
880
0
I've heard that when it comes to the G4 you multiply by 1.5 to get the P4.
So a 1.42 G4 is roughly a 2.2 P4
 

dmw007

macrumors G4
May 26, 2005
10,635
0
Working for MI-6
QCassidy352 said:
Even if you mean a 3.6 P4, which is the fastest available, that's laughably false. I'm as much of a mac fan as anyone, but let's be realistic.
Well, not to be technical, the fastest (measured by pure clock speed) P4 is currently at 3.8GHz and there is the Pentium 4 EE 3.73GHz w/ 1066MHz fsb. But I agree, there is no way that a 1.8GHz SP G5 is gonna be equal to a 4.6GHz, or even a 3.6GHz, Pentium 4.
 

dmw007

macrumors G4
May 26, 2005
10,635
0
Working for MI-6
AtHomeBoy_2000 said:
I've heard that when it comes to the G4 you multiply by 1.5 to get the P4.
So a 1.42 G4 is roughly a 2.2 P4
I have heard of this rule of thumb as well - but I still think that a 1.42GHz G4 is gonna be faster than a 2.2GHz P4. Remember when Steve showed that a 867MHz G4 was faster than a 1.7GHz P4 back in his keynote address showing the "MHz Myth". At the very least I should think that the 1.42GHz SP G4 would beat a 2.4GHz Pentium 4 - guess it just depends on what you are doing with your computer (ie- games, photo editing, etc...)
 

Abstract

macrumors Penryn
Dec 27, 2002
24,379
110
Location Location Location
I think that multiplying by 1.5 would give the best comparison out of all the ones mentioned, but we need to be very realistic here about processing. When using a Mac, I always find that even my 1GHz G4 Powerbook is as fast as a 2.8GHz P4 from the users perspective in terms of feel and response. However, in terms of processing, that 2.8GHz P4 will kick the crap out of my 1GHz G4 Powerbook, no matter how similar the 1GHz G4 and Pentium4 feels.

Also, it depends on when you got the P4. I mean, P4s have been out for absolutely ages, and one of the older P4s with a higher clock speed (at that time....say 3GHz) from several years back will feel slow, but a newer one with a lower clock speed (by today's standards....again lets say 3GHz) will feel very fast.

My brand new 3.4GHz Dell is feels leaps and bounds faster than my 1GHz G4 Powerbook (say 2 or 3x faster at times), but the 2 year old 2.8GHz P4 Dells in my computer lab feel the same speed as my PB, but can probably process Monte Carlo simulations a bit faster.
 

bm7at81

macrumors newbie
Jul 22, 2005
12
0
dmw007 said:
I have heard of this rule of thumb as well - but I still think that a 1.42GHz G4 is gonna be faster than a 2.2GHz P4. Remember when Steve showed that a 867MHz G4 was faster than a 1.7GHz P4 back in his keynote address showing the "MHz Myth". At the very least I should think that the 1.42GHz SP G4 would beat a 2.4GHz Pentium 4 - guess it just depends on what you are doing with your computer (ie- games, photo editing, etc...)
For any intereseted, here is the link for the video from the above mentioned MHZ Myth keynote address... Nice and simple explanation of Processor comparisons.

The MHZ Myth Explained...
 

Gregory

macrumors member
Oct 1, 2001
91
0
Detroit, MI
Abstract said:
I think that multiplying by 1.5 would give the best comparison out of all the ones mentioned, but we need to be very realistic here about processing. When using a Mac, I always find that even my 1GHz G4 Powerbook is as fast as a 2.8GHz P4 from the users perspective in terms of feel and response. However, in terms of processing, that 2.8GHz P4 will kick the crap out of my 1GHz G4 Powerbook, no matter how similar the 1GHz G4 and Pentium4 feels.

Also, it depends on when you got the P4. I mean, P4s have been out for absolutely ages, and one of the older P4s with a higher clock speed (at that time....say 3GHz) from several years back will feel slow, but a newer one with a lower clock speed (by today's standards....again lets say 3GHz) will feel very fast.

My brand new 3.4GHz Dell is feels leaps and bounds faster than my 1GHz G4 Powerbook (say 2 or 3x faster at times), but the 2 year old 2.8GHz P4 Dells in my computer lab feel the same speed as my PB, but can probably process Monte Carlo simulations a bit faster.
A G4 1.42 is the same as a 1.6 P4 in 3D Rendering, I use this test in Ligtwave, Maya, and Cinebench. The G5 are much faster than the P4 in the same clock speed in rendering. A G5 1.8 is the same as a 2.5 P4, and a G5 2.0 is the same as a 2.8 P4. The fastest G5 at 2.7 is the same as a 3.8 P4.
 

Gregory

macrumors member
Oct 1, 2001
91
0
Detroit, MI
Mac_Maniac said:
Hey all,

What is a G4 1.45GHz proccesor equal to a P4? Like speed. The guy at the mac store sais a 1.8GHz G5 is equal to a 4.6GHz P4. I dunno if it is or not. But even an ibook with G3 800MHz feels faster then an 800MHz PC proccesor. I hear Mac proccesors work differenty. So what speed you think it euals up to? Got any links? I want to get an emac.
A single G4 1.42 is equal to a single 1.6 P4 in rendering speed. A single G5 1.8 is equal to a single 2.5 P4, and the fastest single G5 2.7 is equal to a single 3.8 P4.
 

aldo

macrumors regular
Oct 26, 2003
242
0
England, UK
dmw007 said:
I would say that a 1.42GHz G4 would probably be equal to a 2.53-2.8GHz pentium 4. But as it has been already stated, different flavors of processors are going to be faster/slower at certain tasks.
That's not true. It's at best equivalent to a 2GHz P4, but that's pushing it. The FSB on the G4s is dire.
 

Gregory

macrumors member
Oct 1, 2001
91
0
Detroit, MI
aldo said:
That's not true. It's at best equivalent to a 2GHz P4, but that's pushing it. The FSB on the G4s is dire.
Go test it for yourself, the G4's are not that fast, I do 3D animation everyday, I need lots of speed, I test machines on a daliy bases
 

Gregory

macrumors member
Oct 1, 2001
91
0
Detroit, MI
aldo said:
That's not true. It's at best equivalent to a 2GHz P4, but that's pushing it. The FSB on the G4s is dire.
A 2GHZ P4 is 30% faster than the G4 1.42, I'm just giving facts. Don't get me wrong I Love Macs and I'm I Mac Person, that why I Liked the G5, and now the speed will go crazy fast with intels, believe in Steve Jobs, he knows what he is doing. Its for the better of Apple, and Mac computers. . .
 

Gregory

macrumors member
Oct 1, 2001
91
0
Detroit, MI
aldo said:
That's not true. It's at best equivalent to a 2GHz P4, but that's pushing it. The FSB on the G4s is dire.
Also rember when G4's get faster so does intel and amd get faster also. . .

Don't get caught up in the speed game, because new is always faster, until new becomes old. . . and there is always faster than something, thats the nature of speed with computers. . .