Apple limits 2016 MacBook Pro models to 16GB of RAM to maximize battery life
In an email response to a customer question concerning the 16GB memory cap on Apple's new MacBook Pro lineup, a longstanding ceiling for the notebook series, SVP of Worldwide Marketing Phil Schiller said the design decision stems from a need to prolong battery life.

The memory controllers found in Apple's new MacBook Pro with Touch Bar models can only handle up to 16GB of fast 2,333MHz RAM, a definite negative for imaging and video professionals looking for a bulletproof setup.
As Schiller explained to a MacRumors reader who asked about the restriction, RAM allotments of more than 16GB would require more power-hungry controller unsuitable for use in a laptop. Like all cutting edge designs, the MacBook Pro with Touch Bar is an exercise in balancing performance and efficiency.
"To put more than 16GB of fast RAM into a notebook design at this time would require a memory system that consumes much more power and wouldn't be efficient enough for a notebook," Schiller said.
Apple touts its latest top-of-the-line MacBook Pros as having "all-day battery life." Specifically, the company says the notebooks can last up to 10 hours between charges, though that number will fluctuate depending on use case.
According to Apple's MacBook Pro webpage, battery life testing involved iTunes movie playback and common web browsing on standard configuration testbeds with 8GB of RAM, as well as models running the 16GB memory option. Considering the MacBook Pro is marketed toward professional users who run intensive software like Final Cut, Photoshop and similar apps, often simultaneously, the quoted 10 hour estimate is for many wishful thinking.
Considering battery life constraints, a good number of MacBook Pros will likely spend most of their time plugged into a wall outlet. That being said, Apple can't simply bring a laptop format device to market without ensuring the product can perform on the go.
To grab the lowest prices on Apple's new MacBook Pro with Touch Bar, see AppleInsider's Mac Price Guide.

The memory controllers found in Apple's new MacBook Pro with Touch Bar models can only handle up to 16GB of fast 2,333MHz RAM, a definite negative for imaging and video professionals looking for a bulletproof setup.
As Schiller explained to a MacRumors reader who asked about the restriction, RAM allotments of more than 16GB would require more power-hungry controller unsuitable for use in a laptop. Like all cutting edge designs, the MacBook Pro with Touch Bar is an exercise in balancing performance and efficiency.
"To put more than 16GB of fast RAM into a notebook design at this time would require a memory system that consumes much more power and wouldn't be efficient enough for a notebook," Schiller said.
Apple touts its latest top-of-the-line MacBook Pros as having "all-day battery life." Specifically, the company says the notebooks can last up to 10 hours between charges, though that number will fluctuate depending on use case.
According to Apple's MacBook Pro webpage, battery life testing involved iTunes movie playback and common web browsing on standard configuration testbeds with 8GB of RAM, as well as models running the 16GB memory option. Considering the MacBook Pro is marketed toward professional users who run intensive software like Final Cut, Photoshop and similar apps, often simultaneously, the quoted 10 hour estimate is for many wishful thinking.
Considering battery life constraints, a good number of MacBook Pros will likely spend most of their time plugged into a wall outlet. That being said, Apple can't simply bring a laptop format device to market without ensuring the product can perform on the go.
To grab the lowest prices on Apple's new MacBook Pro with Touch Bar, see AppleInsider's Mac Price Guide.
Comments
2015 15-inch MacBook Pro: 99.5 WHr battery
2016 15-inch MacBook Pro: 76 WHr battery
2015 13-inch MacBook Pro: 74.9 WHr battery
2016 13-inch MacBook Pro: 54.5 WHr battery
2016 13-inch MacBook Pro with Touch Bar: 49 WHr battery
The quest for thinness in a "Pro" machine is bringing out the causalities.
In short, Intel continues to drop the ball. It's hard to imagine Apple isn't getting tired of this kind of crap.
https://www.bhphotovideo.com/bnh/controller/home?O=&sku=1265327&gclid=CjwKEAjw7svABRCi_KPzoPr53QoSJAABSvxf1yU3rDtp8-jlAIBM4e3JGgBPUhGK3pJlr8wRV-c1xhoCKFnw_wcB&is=REG&ap=y&m=Y&c3api=1876,92051677802,&Q=&A=details
iPad Air: 32.4wh
iPad Air 2: 27.3wh
Guess what? Each successive model was thinner, more powerful and capable, and got the same 10+ hour battery life.
Oh wait, it only has 16GB RAM as well. Why isn't anyone complaining about Microsoft skimping on RAM? Or releasing an "updated" Surface Book with hardly any changes from last years version?
Personally, I would have loved to see a 32GiB option, not cared if it only a little less heavier and thicker, and had a longer batter life, to boot, but we need to remember that our specific needs are not what Apple wants as we are not the target market. We are simply individual buyers. If we don't like it we can not by not buying it.
I do wonder about his comments about affecting battery life and hope this can be tested. If doubling the RAM to 32GiB caused the machine to lose 30 minutes of run time from that 10 hour claim I think I would have gone for it, but if it lost 2 hours, I doubt I would have. I do think they are losing some up-sales from not offering it, but they also know that so we have to ask ourselves why they aren't offering it if they are leaving money on the table. In any regard, all we can do is speculate so no one should be getting emotional about it.