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A comment on Open Letter to Tim Cook. Parent comment

Re:Open Letter to Tim Cook by MikeKusold on Sunday October 30, 2016 @10:32PM (#12833919)
If it was all about battery savings, then why not use DDR4? DDR4 is more power efficient [1]

[1] http://www.memcon.com/pdfs/proceedings2013/track2/Designing_...

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Re:Open Letter to Tim Cook by nodamage on Sunday October 30, 2016 @11:20PM (#12834089)
Your link compares DDR4 against DDR3, but you should be comparing DDR4 against LPDDR3.
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Re:Open Letter to Tim Cook by kornholi on Monday October 31, 2016 @12:01AM (#12834218)
Why not LPDDR4 against LPDDR3? LPDDR4 is also more efficient and has better density.
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Re:Open Letter to Tim Cook by nodamage on Monday October 31, 2016 @12:19AM (#12834273)
Skylake does not support LPDDR4, nor does Kaby Lake (except with their ultra-low power chips).

I don't think we're going to see 32 GB RAM in the ultrabook category until LPDDR4 is supported by Intel in their mobile-class processors.

Edit: AnandTech suggests that LPDDR3 is 25-30% more power efficient than DDR4. (http://www.anandtech.com/show/6326/additional-details-on-mic...)

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Re:Open Letter to Tim Cook by wila on Monday October 31, 2016 @04:55AM (#12835121)
That might be so, but the macbook air is the ultrabook series and the mac book pro should be the work horse series.
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Re:Open Letter to Tim Cook by behrangsa on Friday November 04, 2016 @09:23PM (#12877592)
I have a Dell Precision 5510 that supports up to 32GB of RAM and also has Skylake Mobile Xeon. Alas, it is plagued with tons of issues.
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Re:Open Letter to Tim Cook by uptown on Sunday October 30, 2016 @10:33PM (#12833923)
Cost. Margins. Their current price point is already an increase. Not sure what using DDR4 would do to that but presumably newer tech translates to higher costs.
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