G5 is 90nm already!
According to a very recently released whitepaper from Apple the current G5 processor is made in 90nm SOI technology already!
http://a2000.g.akamai.net/7/2000/51/...werPCG5_WP.pdf
Page 15 Top and Page 13 3rd paragraph.
http://a2000.g.akamai.net/7/2000/51/...werPCG5_WP.pdf
Page 15 Top and Page 13 3rd paragraph.
Comments
Also this is being discussed, or has already in a thread about the XServe.
Originally posted by ast3r3x
Correct, but it's also still cooled by 7 fans or something so not sure what powerbook owners can look forward to.
hmm. i am invisioning something along the lines of an apple branded fire resistant trouser or shorts.
Originally posted by ast3r3x
Correct, but it's also still cooled by 7 fans or something so not sure what powerbook owners can look forward to. Well I'm looking forward to my powerbook now decreasing in value greatly for a little
Also this is being discussed, or has already in a thread about the XServe.
No its cooled by 9 fans and the reason is, is to make the machine quieter. Its a very advanced cooling system. I'm quite confident that they could have cooled it from less, though it would have been louder. and the cooling system would have been entirely different.
Originally posted by Mount_my_floppy
No its cooled by 9 fans and the reason is, is to make the machine quieter. Its a very advanced cooling system. I'm quite confident that they could have cooled it from less, though it would have been louder. and the cooling system would have been entirely different.
Ok so you have hot and average sounding, or pretty warm and loud? Not much of a compromise if you ask me. I still think they need to get some things worked out or even a different chip if they plan to get powerbook g5s faster then the current one (in strictly MHz)
Originally posted by ast3r3x
Ok so you have hot and average sounding, or pretty warm and loud? Not much of a compromise if you ask me. I still think they need to get some things worked out or even a different chip if they plan to get powerbook g5s faster then the current one (in strictly MHz)
The reason the Xserve has 9 fans is purely for redundancy. If one of the fans stops working, the others speed up to compensate. Plus, remember that it's 9 fans to cool two-chips, not just one. It means that a, say, 1.4 - 1.6 Ghz G5 could quite possibly fit well in a Powerbook.
Originally posted by ast3r3x
Ok so you have hot and average sounding, or pretty warm and loud? Not much of a compromise if you ask me. I still think they need to get some things worked out or even a different chip if they plan to get powerbook g5s faster then the current one (in strictly MHz)
Apparently you have never used a MDD machine.. You may think its not much of a problem but a lot of people don't like to have a machine that sounds like a vacuum cleaner right next to them.. The G5 fixed this like many apple users asked for. Simple as that. Thanks.
Originally posted by Mount_my_floppy
Apparently you have never used a MDD machine.. You may think its not much of a problem but a lot of people don't like to have a machine that sounds like a vacuum cleaner right next to them.. The G5 fixed this like many apple users asked for. Simple as that. Thanks.
Are you going to design a grater style PowerBook? Or perhaps the linear in and out air design the G5 has
I'm not saying it's not possible, I'm saying you can't make a PowerBook as efficient of a cooling system as the G5. Even with 1.6Ghz you are getting a lot of heat. I think you COULD put a 1.6Ghz G5 into a PowerBook, but you'd get tons of heat (even more then the 15" 1.25Ghz which gets pretty darn warm), and you'd have shitty battery life because of the heat produced.
In short...doable of course, practical no.
macrumors say (from white paper) the die size has shrunk from 121 sq mm to 66 sq mm !!!!
Originally posted by ast3r3x
Are you going to design a grater style PowerBook? Or perhaps the linear in and out air design the G5 has
What? Where the hell did that come from?
No No I am not going to do any of that. I am just going to sit here and tell you that you are an idiot.
I'm sure they're well along with the design phase, and we'll see these chips in laptops mid to late spring.
CV
Originally posted by curiousuburb
PowerTune is supposed to throttle down the CPU to save heat/battery
I know that throttles it up/down rapidly in response to changes in demand, and expect that it will be on G5 laptops as well, but isn't there some way they can "downclock" a CPU so that it's max. output would be 1.6 or so?
I ask because word is IBM won't be fabbing the .90 NM chips at lower clock speeds than 2 GZ.
CV
Pismo era Powerbooks already make use of a "heat pipe".
Originally posted by chris v
I ask because word is IBM won't be fabbing the .90 NM chips at lower clock speeds than 2 GZ.
Well if that's true that's a pretty sure give away that this won't be in iMacs or PowerBooks.
Originally posted by Amorph
The only practical limit is the minimum clock speed of the chips and busses involved.
So that means that if the processor is running on a 1GHz bus, its minimum speed will be 1GHz (1x1GHZ)?
Originally posted by KANE
So that means that if the processor is running on a 1GHz bus, its minimum speed will be 1GHz (1x1GHZ)?
No, it means that there is a point at which the CPU or bus just can't go lower - I understand that this is because the voltage that drives the computations is only in place for so long before it drains away, but a more hardware-oriented person would have to answer that for sure. You can't clock a 970 down to 1Hz, for example, but Apple can (and does) clock the 2GHz 970 down to 1.6GHz, and the bus down from 1GHz to 800Mhz.
The ratio between the 970's clock and the bus clock is never less than 2:1, so a 1GHz bus means, at the very least, a 2GHz 970. Furthermore, the 970's clock is always an integer multiple of the bus clock (unlike the G4, which can run at e.g. 8.5:1).