Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Laptop chips: 180, 150 or 130nm

manitoubalck

manitoubalck

macrumors 6502a
Original poster
Jul 17, 2003
815
0
Adelaide, Australia
It is well known that the Powerbooks have 512k L2 cache, and the G4 iBook 256k L2 cache. But is that where the differences stop?

This particular question is relating to the size of the die on which the chips are produced. Are the PB G4 chips produced on a 0.13micron die, while the iBook's are on 0.15 or 0.18 micron die? Or are they both produced on the same size chip.

Are there any other differences in these chips? Since getting a straight answer out of motorola is like trying to draw blood from a stone.
 
M

mac15

macrumors 68040
Dec 29, 2001
3,099
0
the smaller the chip the less power it uses and they can crank up the mhz because of this. Which why intels new 3ghz plus chips are 0.9nm
 
manitoubalck

manitoubalck

macrumors 6502a
Original poster
Jul 17, 2003
815
0
Adelaide, Australia
I know, but that relates to my question how? I'm just curious about the G4 laptop chips in this case.

And the intel chips aren't on 90nm cores yet anyway. That is what the Prescott core is rumored to be.
 
ftaok

ftaok

macrumors 603
Jan 23, 2002
6,487
1,572
East Coast
Re: Laptop chips: 180, 150 or 130nm

Originally posted by manitoubalck
It is well known that the Powerbooks have 512k L2 cache, and the G4 iBook 256k L2 cache. But is that where the differences stop?

This particular question is relating to the size of the die on which the chips are produced. Are the PB G4 chips produced on a 0.13micron die, while the iBook's are on 0.15 or 0.18 micron die? Or are they both produced on the same size chip.

Are there any other differences in these chips? Since getting a straight answer out of motorola is like trying to draw blood from a stone.
Click to expand...
It's not Motorola that isn't disclosing information. It's not Motorola's place to disclose information about their customer's purchases.

Anyways, the G4's used in the newest Powerbooks are the 7447/57. These are Moto's latest G4's and are produced with the 13 micron process. Previous generations of Powerbooks used the 7445/55 and used an 18 micron process. The G4 iBook are using the 7445/55 chip.
 
L

Lanbrown

macrumors 6502a
Mar 20, 2003
893
0
It’s not a rumor, it's a fact, Prescott is 90nm. The G4 in the PB line is .13 and the iBook is .18. The iMac is also still at .18 as is the eMac.
 
D

ddtlm

macrumors 65816
Aug 20, 2001
1,184
0
ryo:

Wow, it does indeed claim that. Very interesting! If the iBook is using 130nm 7445's that makes it much more attractive.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom