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Will the 1.3 GHz model run warmer than 1.1 or 1.2 GHz models?

3bs

3bs

macrumors 603
Original poster
May 20, 2011
5,434
24
Dublin, Ireland
I'd like to get the maxed out model but after reading some reviews saying it can run a bit warm on the 1.1 GHz model they reviewed, I'm a bit worried about how warm the 1.3 GHz model will run.

Do laptops with higher CPU speeds usually run warmer? Is this only when you're pushing the CPU to do CPU intensive tasks or even when just doing simple tasks such as browser/mail/media consumption?
 
Good question. The operating approach with Core M seems to be sprint and stop rather than continual crunching. It will probably depend a lot on how Apple has set the system up (which will probably be different than the way other manufacturers do). If the 1.3gHz can finish a task and get back to idle faster, it might be cooler, hard to say...I know that's not an answer...:eek:
 
The base 1.1/5Y31 model is also the highest in TDP/Watts at 6W with the other two likely closer to 5W. So they might run cooler, throttle less, and so get better scores in benchmarks than the simple differences you might expect. I hope the guys who did the detailed coreM review at Anandtech (http://anandtech.com/show/9117/analyzing-intel-core-m-performance) get all 3 and compare them, that would be the best scenario for temps/speed/power/benchmarks across the 3...
 
newellj said:
Good question. The operating approach with Core M seems to be sprint and stop rather than continual crunching. It will probably depend a lot on how Apple has set the system up (which will probably be different than the way other manufacturers do). If the 1.3gHz can finish a task and get back to idle faster, it might be cooler, hard to say...I know that's not an answer...:eek:
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Thanks for at least spitballing :p

Hopefully someone with more knowledge about the technical details can chime in before these go online tomorrow because I don't know if I can stop myself from ordering it straight away.
 
3bs said:
Thanks for at least spitballing :p

Hopefully someone with more knowledge about the technical details can chime in before these go online tomorrow because I don't know if I can stop myself from ordering it straight away.
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There is always the return period - though I don't know how inconvenient that might be for you.
 
newellj said:
There is always the return period - though I don't know how inconvenient that might be for you.
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Pretty inconvenient which is why I'd rather get the right model from the first try.

What HelsinkiMac is saying sounds promising if accurate.

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HelsinkiMac said:
The base 1.1/5Y31 model is also the highest in TDP/Watts at 6W with the other two likely closer to 5W. So they might run cooler, throttle less, and so get better scores in benchmarks than the simple differences you might expect. I hope the guys who did the detailed coreM review at Anandtech (http://anandtech.com/show/9117/analyzing-intel-core-m-performance) get all 3 and compare them, that would be the best scenario for temps/speed/power/benchmarks across the 3...
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You sound like you know what you're talking about. Can you explain what this means in laymen terms? http://www.anandtech.com/show/9117/analyzing-intel-core-m-performance/2
 
3bs said:
Pretty inconvenient which is why I'd rather get the right model from the first try.

What HelsinkiMac is saying sounds promising if accurate.

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You sound like you know what you're talking about. Can you explain what this means in laymen terms? http://www.anandtech.com/show/9117/analyzing-intel-core-m-performance/2
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Yup, he knows what he is talking about. Apple didn't max out the 1.2GHz 5Y51 (maxes out at a 1.3GHz configuration) and 1.3GHz 5Y71 (maxes out at a 1.4GHz configuration) the way they did the 1.1GHz 5Y31 (maxes out at a 1.1GHz configuration) in the base model.

This means there is more thermal head room for the two higher processors to operate it than the base model.

Basically it means that under the same workload, they should run cooler at higher performance levels, thus not only being higher powered than the base model but also sustain that performance longer than the base model can.
 
Laymans terms = a fair chance both 1.2 and 1.3 will be cooler than the 1.1, but by no means definite. How much cooler would need Anandtech or similar to run a proper comparison, and whether the 1.1 is too warm for your personal comfort would need you to run a test!
 
MyopicPaideia said:
Yup, he knows what he is talking about. Apple didn't max out the 1.2GHz 5Y51 (maxes out at a 1.3GHz configuration) and 1.3GHz 5Y71 (maxes out at a 1.4GHz configuration) the way they did the 1.1GHz 5Y31 (maxes out at a 1.1GHz configuration) in the base model.

This means there is more thermal head room for the two higher processors to operate it than the base model.

Basically it means that under the same workload, they should run cooler at higher performance levels, thus not only being higher powered than the base model but also sustain that performance longer than the base model can.
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HelsinkiMac said:
Laymans terms = a fair chance both 1.2 and 1.3 will be cooler than the 1.1, but by no means definite. How much cooler would need Anandtech or similar to run a proper comparison, and whether the 1.1 is too warm for your personal comfort would need you to run a test!
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This is great news. As long as the 1.3 is as warm or cooler than the lower models I'm going with that one. Thanks for the info guys.
 
I'm not sure if it's correct to assume the 1.1 will draw 6W. Apple made a big thing in the keynote of stating 5W.

ZmCeilr.png


Apple has been known to get the best chips from Intel so that could be the reason for the discrepancy between that slide and the published chart from Intel stating 6W. The lower quality chips might require the 6W, the best just 5W.

If they're all 5W there should be no temperature difference.
 
3bs said:
This is great news. As long as the 1.3 is as warm or cooler than the lower models I'm going with that one. Thanks for the info guys.
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I'm in the 1.3 camp too. These reviews just back up my decision even more.
 
3bs said:
I'd like to get the maxed out model but after reading some reviews saying it can run a bit warm on the 1.1 GHz model they reviewed, I'm a bit worried about how warm the 1.3 GHz model will run.

Do laptops with higher CPU speeds usually run warmer? Is this only when you're pushing the CPU to do CPU intensive tasks or even when just doing simple tasks such as browser/mail/media consumption?
Click to expand...

Warm isn't bad. iPads get warm when getting pushed too.
 
As for it running to warm/hot I think as long as you don't use the chrome browser,have more then 10 open tabs in safari or firefox,don't play any games,don't run any intense programs like photoshop,you should be fine. :eek:
 
3bs said:
I'd rather it not get warm if it's going to be on my lap. Of course it's going to be warm to a degree, just how much is what matters.
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All of the MacBooks get warm. My 15" rMPB is warm right now on my lap, and I'm just using Safari and Spotify at the moment.
 
3bs said:
I'd rather it not get warm if it's going to be on my lap. Of course it's going to be warm to a degree, just how much is what matters.
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What I took from the reviews was that it wasn't too hot and, more importantly, that it didn't get hot in the wrong places.
 
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