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TazmoStarkana

macrumors regular
Original poster
Jun 12, 2016
124
32
So the 3.1GHz i5 CPU upgrade option costs $100 and gives you an additional 200MHz per core. That's 4MHz/$1. Is it worth the performance gain? And how much would it reduce battery life? And how much additional heat will be generated, and is it noticeable in the experience?
 

Ghost31

macrumors 68040
Jun 9, 2015
3,352
5,182
If we were talking about the 12 MacBook, I'd say every little bit helps. The MacBook Pro is already quick so each additional bump in speed is really just because you have the money AND if you're doing computationally heavy things where every little bit counts.

Day to day usage you would notice no difference
 

Michael Scrip

macrumors 604
Mar 4, 2011
7,931
12,488
NC
So the 3.1GHz i5 CPU upgrade option costs $100 and gives you an additional 200MHz per core. That's 4MHz/$1. Is it worth the performance gain? And how much would it reduce battery life? And how much additional heat will be generated, and is it noticeable in the experience?

You probably won't notice the speed increase in day-to-day operations.

But the extra $100 you spend today will help the resale value in the future if you decide to sell it.
 

skids929

macrumors 6502a
Mar 24, 2011
629
355
Does anyone think there would be a battery life difference between the 3.1 and 2.9?
 

chabig

macrumors G4
Sep 6, 2002
11,296
8,998
I didn't go for the 3.1. In past years, I'd pay extra for a CPU bump when it was from an i5 to an i7 and the i7 had more cache or a feature like hyper threading. This year, the two i5 variants and the i7 all have the same number of cores, the same amount of cache, and they all have hyper threading. I didn't think the $100 made sense for me.
 

yillbs

macrumors 6502
Oct 2, 2015
382
158
Texas
Don't try to compare things based on dollar per MHZ, it's not going to work, it's not worth the 100 bucks, but the I7 is worth the extra cash, get that one.
 

deliriumxy

macrumors member
Nov 21, 2016
66
29
Don't try to compare things based on dollar per MHZ, it's not going to work, it's not worth the 100 bucks, but the I7 is worth the extra cash, get that one.

From a technical perspective why is the i7, in your opinion, worth the upgrade?
 

yillbs

macrumors 6502
Oct 2, 2015
382
158
Texas
From a technical perspective why is the i7, in your opinion, worth the upgrade?

It's a faster CPU with higher core clock, and higher TB, it also has double L3 cache, meaning I'm getting good use out of my bootcamp install, playing games is a bit nicer IMO. Moreover, I like to process complicated files, compiling code, running emulators, etc, the extra core clock TB clock, and higher L3 cache is worth it.
 

Brookzy

macrumors 601
May 30, 2010
4,976
5,573
UK
If we were talking about the 12 MacBook, I'd say every little bit helps. The MacBook Pro is already quick so each additional bump in speed is really just because you have the money AND if you're doing computationally heavy things where every little bit counts.

Day to day usage you would notice no difference
There is this perception that the 12" MacBook is some sort of lumbering sloth that can't compute anything and that the Pro is clearly faster than it. Having here the 2016 12" MacBook with the 1.3 GHz m7 processor, and the 2016 13" MacBook Pro with 3.3 GHz i7 processor, I'm seeing Geekbench scores in the region of 6500-6900 and 8000-8400 respectively. Surely the difference should be greater than this? What tests can I do to yield more representative results? With these numbers, I am quite underwhelmed at the Pro's performance (and quite impressed by the 12"'s performance).
 

Ghost31

macrumors 68040
Jun 9, 2015
3,352
5,182
There is this perception that the 12" MacBook is some sort of lumbering sloth that can't compute anything and that the Pro is clearly faster than it. Having here the 2016 12" MacBook with the 1.3 GHz m7 processor, and the 2016 13" MacBook Pro with 3.3 GHz i7 processor, I'm seeing Geekbench scores in the region of 6500-6900 and 8000-8400 respectively. Surely the difference should be greater than this? What tests can I do to yield more representative results? With these numbers, I am quite underwhelmed at the Pro's performance (and quite impressed by the 12"'s performance).
The 12 inch is just fine for most things, the problem comes with thermal throttling whenever you're doing something processor intensive.
 

thekev

macrumors 604
Aug 5, 2010
7,005
3,343
There is this perception that the 12" MacBook is some sort of lumbering sloth that can't compute anything and that the Pro is clearly faster than it. Having here the 2016 12" MacBook with the 1.3 GHz m7 processor, and the 2016 13" MacBook Pro with 3.3 GHz i7 processor, I'm seeing Geekbench scores in the region of 6500-6900 and 8000-8400 respectively. Surely the difference should be greater than this? What tests can I do to yield more representative results? With these numbers, I am quite underwhelmed at the Pro's performance (and quite impressed by the 12"'s performance).

In terms of responsiveness, nothing less than a 50% improvement is going to be noticeable. Usually benchmarks exaggerate any differences. If both machines can sustain that level of performance without throttling, I wouldn't expect to notice any difference. A 15" macbook pro comes in around 12000. Under load it may may perform better. As for the OP, I would only take that upgrade if it came in at the same price.
 

bizack

macrumors 6502a
Apr 21, 2009
611
399
It's a faster CPU with higher core clock, and higher TB, it also has double L3 cache, meaning I'm getting good use out of my bootcamp install, playing games is a bit nicer IMO. Moreover, I like to process complicated files, compiling code, running emulators, etc, the extra core clock TB clock, and higher L3 cache is worth it.
Not sure which i7 you're referencing, but the Core i5 and the Core i7 in the 13" MBP TB are identical except for the clock speed (no differences as far as cache size or type).
 
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