With dual processors, the software you use must be written to use both at the optimum level. Even then, you usually won't get double the processing power.
In other words, 1.25Ghz times 2 does NOT = 2.50Ghz.
That said, don't underestimate the enhanced computing by having dual chips. I'd definitely choose a dualie over a...singlie any day.
you do however, have to wait in vain for the rest of your adult life for software developers to write their software to actually take advantage of the dual processors . . .
As someone said i will take a single 2,5 ghz Chip against any dual 1,25 .
MP are more expansive, produce more heat, and have better performance only in certain part of software. Personaly i will take a single 1,4 PPC 970 instead a dual G4.
Dual are good if you are a monster power eater, a power user seeking to have the more horsepower possible. If there is two duals in the powermac line it's only because the G4 is getting old.
I am ready to bet that the next generation of Powermac based upon the PPC 970, will have two single versions and one dual version. The PPC 970 is powerfull enough to ignore marketings tricks.
Exactly. Using Dualies in OSX is a dream. I have a Dual 1Ghz DDR, and OS9 is slower than OSX because I cannot do multiple things at once. You can't ecode mp3 at 20x and install and application for instance, with a single processor machine.
I only wish that Games used more than one processor, I've been told that Jedi Knight II does have SMP support, however it is not recommended, does anyone know how to activate it (if it exists) and why it isn't on?
If all applications were multithreaded, you wouldn't notice the blazing speed of dual CPUs, especially on an Apple machine. You'll see the most snappiness when a single-threaded process takes over one CPU without completely saturating the bus, leaving the other CPU 100% open.
1. You are using an app specifically coded for duals
2. You have two apps (even if not specifically coded for duals) churning away simultaneously
There's always been this mythical notion that "in X everything will be faster on duals," perhaps because OS calls can run at the same time as app-specific computation, but I've never seen that actually demonstrated.
Oh my god, multitasking in OS X is a wet dream. I can run soo many things at once with out a bumb. I`m a webdeveloper so I always have like 5000 Windows open and 200 apps running. I never once really seen a performance hit, with out trying to create one.
Comments
Advantage: faster
Disadvantage: more expensive
That was easy.
In other words, 1.25Ghz times 2 does NOT = 2.50Ghz.
That said, don't underestimate the enhanced computing by having dual chips. I'd definitely choose a dualie over a...singlie any day.
MP are more expansive, produce more heat, and have better performance only in certain part of software. Personaly i will take a single 1,4 PPC 970 instead a dual G4.
Dual are good if you are a monster power eater, a power user seeking to have the more horsepower possible. If there is two duals in the powermac line it's only because the G4 is getting old.
I am ready to bet that the next generation of Powermac based upon the PPC 970, will have two single versions and one dual version. The PPC 970 is powerfull enough to ignore marketings tricks.
I only wish that Games used more than one processor, I've been told that Jedi Knight II does have SMP support, however it is not recommended, does anyone know how to activate it (if it exists) and why it isn't on?
That is, if it does actually have it...
1. You are using an app specifically coded for duals
2. You have two apps (even if not specifically coded for duals) churning away simultaneously
There's always been this mythical notion that "in X everything will be faster on duals," perhaps because OS calls can run at the same time as app-specific computation, but I've never seen that actually demonstrated.
no slowdowns while using multiple applications
Oh my god, multitasking in OS X is a wet dream. I can run soo many things at once with out a bumb. I`m a webdeveloper so I always have like 5000 Windows open and 200 apps running. I never once really seen a performance hit, with out trying to create one.