17" MBP, will the 2.5ghz run warmer/louder than the 2.4?


GGJstudios

macrumors Westmere
May 16, 2008
44,365
703
Will the 2.5 ghz 17" MBP will run louder than the 2.4 due to extra heat and fan noise?
Which processor you have installed has no effect on heat or fan noise. What workload you put on your system will. You will likely see zero difference between the two processors.
 

entatlrg

macrumors 68040
Original poster
Mar 2, 2009
3,375
3
Waterloo & Georgian Bay, Canada
Thanks for the quick reply. We're replacing another 15" MBP and I have the chance today to get the upgraded processor for $100. Get 512ssd and 8gb ram ... may as well upgrade the processor too.

How are you liking your 17" Macman? You use it with an 11" too right? Which do you use more?
 

GGJstudios

macrumors Westmere
May 16, 2008
44,365
703
Thanks for the quick reply. We're replacing another 15" MBP and I have the chance today to get the upgraded processor for $100. Get 512ssd and 8gb ram ... may as well upgrade the processor too.

How are you liking your 17" Macman? You use it with an 11" too right? Which do you use more?
Don't get increased RAM from Apple, as they overcharge. Buy the extra RAM and install it yourself and you'll save.
 

thundersteele

macrumors 68030
Oct 19, 2011
2,984
7
Switzerland
Which processor you have installed has no effect on heat or fan noise. What workload you put on your system will. You will likely see zero difference between the two processors.
This is certainly correct.

Would you say that there is absolutely no difference in heat/power consumption, aside from manufacturing fluctuations?
I was about to say this, but then I wasn't sure, since all of these CPUs are identical, except for their ability to run stable at higher clock speeds. Wouldn't the same CPU run at a higher clock speed use slightly more power?
I know that once one takes the complicated thermal management into account, there will be no difference in practice. I was more wondering about a theoretical scenario where enough cooling is provided to run each CPU at their design clock speed under load - would the higher clocked CPU draw (2.5/2.4-1)% more power?
 

GGJstudios

macrumors Westmere
May 16, 2008
44,365
703
This is certainly correct.

Would you say that there is absolutely no difference in heat/power consumption, aside from manufacturing fluctuations?
I was about to say this, but then I wasn't sure, since all of these CPUs are identical, except for their ability to run stable at higher clock speeds. Wouldn't the same CPU run at a higher clock speed use slightly more power?
I know that once one takes the complicated thermal management into account, there will be no difference in practice. I was more wondering about a theoretical scenario where enough cooling is provided to run each CPU at their design clock speed under load - would the higher clocked CPU draw (2.5/2.4-1)% more power?
It would be completely driven by workload, of course, but I seriously doubt there would be any measurable difference in power requirements between the two processors. Certainly not enough that the user would notice.
 

Macman45

macrumors G5
Jul 29, 2011
13,196
133
Somewhere Back In The Long Ago
Thanks for the quick reply. We're replacing another 15" MBP and I have the chance today to get the upgraded processor for $100. Get 512ssd and 8gb ram ... may as well upgrade the processor too.

How are you liking your 17" Macman? You use it with an 11" too right? Which do you use more?
I use it with a 13" MBA and a 27" iMac....I love my MBP don't get me wrong, but it's SO heavy...It travels to and from the studio with me, the MBA just doesnt have the SSD capacity I need.

If Apple make a 17" Pro with a reliable 500GB+ SSD? This one will be retired...It's a great screen and a great MAc, but ditch the optical and a large SSD? I'm there :)
 

thundersteele

macrumors 68030
Oct 19, 2011
2,984
7
Switzerland
Don't get increased RAM from Apple, as they overcharge. Buy the extra RAM and install it yourself and you'll save.
But the SSD at $1100 is ok? At this point the machine has a list price close to $4k, and I would stop worrying about $200 and save myself the hassle to shop for RAM, wait for the shipment, and having to install it myself.

Of course a third party SSD can have infinitely more complications than third party RAM, there's the potential to save about $600 and actually get a much faster brand name SSD (Samsung 830, Crucial M4).
 

GGJstudios

macrumors Westmere
May 16, 2008
44,365
703
But the SSD at $1100 is ok?
You're quite right: it's not OK. I didn't even look at SSD pricing, but of course the same holds true as for RAM: you'll get much better pricing by buying 3rd party (it's all 3rd party, since Apple doesn't make SSDs/HDDs or RAM).
 

Macman45

macrumors G5
Jul 29, 2011
13,196
133
Somewhere Back In The Long Ago
Apples RAM prices are really absurd...if it was a case of a few bucks...fine, it isn't it's insane....I used Crucial and saved a fortune...It has no effect on your warranty either...Apple even show you how to do it.

I think it's more of a hassle to "Pull" a stock 4GB or 8GB out of the line and put the sticks in.

My iMac was custom spec.But I took the RAM up to 16GB myself...An easy job requiring a small screw driver (Star Point) and in the modules go. On principal I just won't buy RAM from Apple...Newegg are good too I hear.