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The difference between 17" and 15" in CPU

D

deanmadoo

macrumors member
Original poster
Dec 25, 2008
46
0
I was wondering whats the difference between the 15" CPU and the 17"?
other than clock speed

I read somewhere that they're not the same line.

Is there a difference in speed or power efficiency?
 
17" MBPs offers the option of having a matte screen, while all 15" MBPs come with glossy screens.

Also, 17" MBPs have an internal silver-zinc battery while 15" MBPs use the traditional lithium-ion battery.
 
cathyy said:
17" MBPs offers the option of having a matte screen, while all 15" MBPs come with glossy screens.

Also, 17" MBPs have an internal silver-zinc battery while 15" MBPs use the traditional lithium-ion battery.
Click to expand...

Pls read the post
I ask about the CPU not the overall spec
 
cathyy said:
17" MBPs offers the option of having a matte screen, while all 15" MBPs come with glossy screens.

Also, 17" MBPs have an internal silver-zinc battery while 15" MBPs use the traditional lithium-ion battery.
Click to expand...

They aren't silver-zinc. Still plain old lithium-polymer. Check Apple.com.
 
deanmadoo said:
Pls read the post
I ask about the CPU not the overall spec
Click to expand...

Yea my bad. Sorry. I just re-read the title and realized my mistake. :)

Well, guessing from the clock speeds I'm going to guess that the 17" uses the T9550 & T9800 CPUs, while the 15" notebooks use the P8600 & T9400. There's pretty much no difference between the T9400, T9550 & T9800 other than clock speed. However there are some differences between the P8600 & T9xxx.

Mainly, the P series uses less voltage than the T series; 25W vs 35W. Also the P8600 has only 3MB of L2 cache while the T9xxx has 6MB of L2 cache.

drlunanerd said:
They aren't silver-zinc. Still plain old lithium-polymer. Check Apple.com.
Click to expand...

Noted, thanks. :)
 
The main difference is actually no difference. It's just that they're newer. the high end 15 came in 2.53GHz and 2.8GHz. the same 2.53 model isn't available anymore, and has been replaced by intel at 2.66, while the 2.8 that came with the high end 15" has been replaced by a 2.93 model.
 
raymondu999 said:
The main difference is actually no difference. It's just that they're newer. the high end 15 came in 2.53GHz and 2.8GHz. the same 2.53 model isn't available anymore, and has been replaced by intel at 2.66, while the 2.8 that came with the high end 15" has been replaced by a 2.93 model.
Click to expand...

Any speculation on whether Apple will bump up the high end 15" to 2.93Ghz?
Because i am thinking of buying the 15" 2.8Ghz
And was wondering should I wait for a CPU Bump?
 
deanmadoo said:
Any speculation on whether Apple will bump up the high end 15" to 2.93Ghz?
Because i am thinking of buying the 15" 2.8Ghz
And was wondering should I wait for a CPU Bump?
Click to expand...

Nah, I doubt they will refresh the 15" MBPs again so soon. You honestly aren't going to notice much of a difference of 0.13GHz clock speed in most tasks, unless you do really heavy video encoding or something really processor intensive.
 
I'm going to go to college in May

Do you think there would be an update by then?:D
 
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