OS X Mavericks Features iMac Late 2012? PowerNap etc...

[domdom83]

OS X Mavericks brings new features to the mac... Great... but... here are my questions:
Does PowerNap work on an iMac with a standard HD?
Does AppNap work too?
Will it consume more or less memory than Mountain Lion?
Should I upgrade to 16gb?

 

[Cougarcat]

OS X Mavericks brings new features to the mac... Great... but... here are my questions:
Does PowerNap work on an iMac with a standard HD?
Does AppNap work too?
Will it consume more or less memory than Mountain Lion?
Should I upgrade to 16gb?

No
Yes
It's more efficient with memory
No

 

[domdom83]

No
Yes
It's more efficient with memory
No

Thanx!
What if i change to an external ssd on USB 3.0?

 

[chrfr]

Thanx!
What if i change to an external ssd on USB 3.0?

Powernap only works on Macs that were built with an SSD.

 

[Weaselboy]

Does PowerNap work on an iMac with a standard HD?

Powernap only works on newer Mac portables. It does not work on iMacs.

See here.

 

[domdom83]

Powernap only works on newer Mac portables. It does not work on iMacs.

See here.

Thanks

 

[wjnieuw]

I updated to Mavericks and I can select "enable Powernap" in my settings..... I have an iMac 2012.

 

[Weaselboy]

Powernap only works on newer Mac portables. It does not work on iMacs.

See here.

I updated to Mavericks and I can select "enable Powernap" in my settings..... I have an iMac 2012.

If you look at the link in my post, Apple says it only works on the portables on that list. I don't believe iMacs have the hardware to run Powernap. I wonder if this is a bug in Mavs that shows that checkbox even if the machine does not support Powernap? Have you tested that it actually works?

 

[Weaselboy]

Check this out. Looks like maybe Mavs does enable Powernap on some iMacs.

 

[chrfr]

Check this out. Looks like maybe Mavs does enable Powernap on some iMacs.

I'm also able to enable it on late 2012 Minis, one with a Fusion drive, one with standard spinning disks only.

 

[Bear]

...
Should I upgrade to 16gb?

If you're talking about an existing system, get Mavericks and see if you need a memory upgrade. If you're talking about a new system, it depends on which Mac you're looking at.

 

[gorskiegangsta]

Powernap only works on Macs that were built with an SSD.

Not entirely true. PowerNap was initially designed to work exclusively with newer portable Macs. It looks like Apple may expand PowerNap compatibility to iMacs with Mavericks.
https://www.macrumors.com/2013/10/07/mavericks-to-include-support-for-power-nap-on-imacs/ And based on this info, there's no reason why it can't be enabled on any reasonably new Mac Mini or Pro.

 

[domdom83]

Not entirely true. PowerNap was initially designed to work exclusively with newer portable Macs. It looks like Apple may expand PowerNap compatibility to iMacs with Mavericks.
https://www.macrumors.com/2013/10/07/mavericks-to-include-support-for-power-nap-on-imacs/ And based on this info, there's no reason why it can't be enabled on any reasonably new Mac Mini or Pro.

In fact I've read that PowerNap can be used on iMac (2012 and 2013). You just need Mavericks and an SSD or FusionDrive.

I'm definitely getting a 250Gb SSD in the next few days.

 

[DavidBlack]

In fact I've read that PowerNap can be used on iMac (2012 and 2013). You just need Mavericks and an SSD or FusionDrive.

I'm definitely getting a 250Gb SSD in the next few days.

That information is incorrect though, I have an iMac 2012 (No SSD or fusion drive) but it has the option in system preferences.

 

[benwiggy]

Will it consume more or less memory than Mountain Lion?
Should I upgrade to 16gb?

It will use more of your available memory, but it will use it ... wisely.
Only if you are getting slowdowns due to swapping out to disk.