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

Scott6666

macrumors 68000
Original poster
Feb 2, 2008
1,536
983
I did not pick up yesterday on the fact that Apple switched to a 45nm processor. This could have a dramatic impact on heat, especially with the new GPU!
 
scott, you and I were discussing it yesterday in this thread. you didn't know that's what i meant by the 4W TDP drop?

old processors 21W, new 17W.
 
scott, you and I were discussing it yesterday in this thread. you didn't know that's what i meant by the 4W TDP drop?

old processors 21W, new 17W.

Sorry, I did not put 2 and 2 together. That discussion focused on the GPU. I was really surprised to see today that the CPU itself had changed to 45nm tech. I think this will have a really big impact on the heat generated by the device. Wonder why more people aren't talking about this. Lord knows they've complained enough about the heat/noise of the MBA.
 
Sorry, I did not put 2 and 2 together. That discussion focused on the GPU. I was really surprised to see today that the CPU itself had changed to 45nm tech. I think this will have a really big impact on the heat generated by the device. Wonder why more people aren't talking about this. Lord knows they've complained enough about the heat/noise of the MBA.

I agree. I wasn't even that excited about the GPU update but the 45nm is huge. I think it's because Steve didn't explicitly highlight it in the keynote, which is odd since it's the thing that's going to make me buy a new one.
 
tricky position for Steve

Steve didn't explicitly highlight it in the keynote, which is odd

He likely didn't want to call attention to a major design flaw in a machine that has been on the market for the better part of a year.
 
He likely didn't want to call attention to a major design flaw in a machine that has been on the market for the better part of a year.

You could talk about it without it seeming like a design flaw. To be fair, Intel didn't update the chip to accommodate the Air, they updated it in the normal progression of Moore's Law. 45nm, larger cache, less heat-- these are things that will help all computers that use the chips, not just the Air.
 
select company

these are things that will help all computers that use the chips, not just the Air.

The Voodoo machine, as far as I know, is the only other machine that uses this chip. Most computers - if they used this chip - wouldn't have the overheating problem because they have better internal air circulation than the Air.

But whatever the case, this is a welcome development. Now we have to see how much more heat the new graphics unit produces than the old one. I suppose it's better to have the heat distributed between two points inside the box.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.