Waccoon wrote:
I still can't believe Apple are ditching PowerPC for Pentiums... just when things were looking up and Microsoft starts using Mac development kits for XBox-360... Apple goes and starts using Intel chips!
Idiots!
What's the big deal? It's still a Mac.
Besides, Apple didn't have much choice. I'll leave it to some rare, non-prejudiced Mac expert to dish out the details.
I'll do it Waccon :-)
Ok, lets get the facts straight, things are NOT looking up for the PPC. The PPC has found it's place as an embedded chip, it's placement in the future games consoles only re-enforces that position. In the PS3, it's little more than a controler (remember the 68000 in the Atari Jaguar?), in the XBox360 it is used to provide a small core multiprocessing platform which M$ can hold some IP control over.
In both machines the tight integration of the mid-power CPU with the extremely powerful GFX chips are the key to their performance,
For the Dektop/Laptop (ie general purpose computing platform), IBM would have to plough massive funds into the PPC 970 development... It's getting harder and harder to ramp the speed without the chips getting so hot that they NEED liquid cooling... and given that the future of general purpose computing is almost certainly in the mobile arena (ie Laptops)- or at least Apple think so- someone would need to fund development of cool high performance PPC chips... Apple can't aford to do it, IBM don't need to do it... The PPC is no longer an option for Apple...
Intel on the other hand have a very powerful chip that runs very cool and uses very litle power... the Pentium-M, which IMHO is the best Mobile chip available at the moment. The Intel roadmap shows that in two years the Pentium-M will be a dual core 64bit chip in the high 2Ghz region.
What choice did Apple have?
Ok, right now the Freescale 7447A (or the "G4" in Apple laptop parlance) is just about able to struggle along with the Pentium-M... but again Freescale don't have the money to take it to a dual core, 64bit multi Ghz Chip... it will develop, but at the same slow rate that has crippled the line.
This post was written and posted on a PowerBook G4