How to decide 8GB and 16GB of RAM on rMBP?

cmm

macrumors 6502a
Original poster
Apr 30, 2006
769
10
NYC
I don't game. Anything high performance (mathematica, matlab, etc), I have a dedicated linux box for. I've always had just 8gb of ram and got by just fine. I was wondering when is it worthwhile to go with 16gb of ram? Or, rather, am I missing out by not having 16gb of ram? When do you get the benefit of 16gb of ram?

Thanks!
 

maflynn

Moderator
Staff member
May 3, 2009
65,061
30,990
Boston
I'd say 8GB is more then enough for those stated needs, and OSX is really excellent at memory management so I'd say you'll be good with 8GB.

With that said if you'll be agonizing over this and continuing to question the decision after the fact, it may be worth the 200 for peace of mind.
 

p3ntyne

macrumors 6502
Jan 10, 2014
406
3
Sydney, Australia
I don't game. Anything high performance (mathematica, matlab, etc), I have a dedicated linux box for. I've always had just 8gb of ram and got by just fine. I was wondering when is it worthwhile to go with 16gb of ram? Or, rather, am I missing out by not having 16gb of ram? When do you get the benefit of 16gb of ram?

Thanks!
Save the money, get the 8gb.
 
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mr.bee

macrumors 6502a
May 24, 2007
707
422
Brussels, belgium
I just bought a 15 rmbp 2.3ghz and added the 16 Gb RAM.

when I opened Safari, iDraw, Pixelmator, iPhoto, iTunes, and Mail, the system said I used 9 Gb already.

I don't find the 16Gb RAM to be a luxury anymore.
 

McGiord

macrumors 601
Oct 5, 2003
4,530
286
Dark Castle
For today get 16GB: you can run virtual machines and keep it running fine. So you can get you Linux or any other OS running without issues without having to turn on the other box.
For the future get 16GB.
If you can pay it get it.
 

maflynn

Moderator
Staff member
May 3, 2009
65,061
30,990
Boston
I just bought a 15 rmbp 2.3ghz and added the 16 Gb RAM.

when I opened Safari, iDraw, Pixelmator, iPhoto, iTunes, and Mail, the system said I used 9 Gb already.

I don't find the 16Gb RAM to be a luxury anymore.
Free ram is wasted ram with sox. You need to look at swap outs or memory pressure (if on mavericks). In windows if you run low on free ram things slow down. Wi osx free ram is a wasted resource
 

Meister

Suspended
Oct 10, 2013
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4,265
I don't game. Anything high performance (mathematica, matlab, etc), I have a dedicated linux box for. I've always had just 8gb of ram and got by just fine. I was wondering when is it worthwhile to go with 16gb of ram? Or, rather, am I missing out by not having 16gb of ram? When do you get the benefit of 16gb of ram?
Thanks!
Use the search function on this forum.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,483
9,109
California
When do you get the benefit of 16gb of ram?
Good test here that shows almost zero difference between 8 and 16 when using standard desktop apps. You start to see some difference once you get into things like manipulating 500MB images in Photoshop.
 

Meister

Suspended
Oct 10, 2013
5,456
4,265
Every. Single. Day.
I think the admins/mods just like looking at or getting off to new RAM threads. That can be the only reason why they refuse to make a sticky RAM thread.
Ram threads are fun I admit.
They are like an artmovie. Repeative.
Watch Jim Jarmusch: The Limits of Control.
Deja-vu.
 

cmm

macrumors 6502a
Original poster
Apr 30, 2006
769
10
NYC
You know, you can ignore threads you don't like/don't have any interest in/don't want to answer.
 

leman

macrumors G4
Oct 14, 2008
10,296
4,821
You know, you can ignore threads you don't like/don't have any interest in/don't want to answer.
Its simply that this topic has been discussed ad nauseum already and there is tons of information available.

Here is my rule of a tumb: if you are not sure if you need 16GB RAM, you don't need 16GB RAM ;)
 

cmm

macrumors 6502a
Original poster
Apr 30, 2006
769
10
NYC
I assume most questions have been discussed ad nausem. MR isn't going to regulate it as it helps them for SEO purposes and it helps users get answers to their questions quickly. Not to mention, each user can, but not necessarily, have slightly different use cases.
 

snaky69

macrumors 603
Mar 14, 2008
5,904
481
Or, rather, am I missing out by not having 16gb of ram? When do you get the benefit of 16gb of ram?

Thanks!
With computers, a general rule of thumb is: if you need to ask what it does, you don't need it.
 

Jonathanchasr

macrumors newbie
Nov 18, 2013
24
0
NJ
8GB would be better for you

I think 8GB will be perfect for you however depending on the amount of RAM OSX uses a certain amount of RAM. I though 8GB would be perfect for me but I find that if you use a lot of Adobe Programs and lots of programs open you suck up RAM quickly... so beware if you plan on using professional programs in the future go with 16GB
 

fskywalker

macrumors 65816
Nov 6, 2009
1,223
3
Seems you are running close to the 8GB Ram you have, would suggest you get the 16GB Ram upgrade.
 

Orr

macrumors 6502
Oct 8, 2013
363
50
You know, you can ignore threads you don't like/don't have any interest in/don't want to answer.
It's the morbid fascination that keeps most of us coming back for more.
 

laomao

macrumors member
Sep 12, 2012
40
0
I don't game. Anything high performance (mathematica, matlab, etc), I have a dedicated linux box for. I've always had just 8gb of ram and got by just fine. I was wondering when is it worthwhile to go with 16gb of ram? Or, rather, am I missing out by not having 16gb of ram? When do you get the benefit of 16gb of ram?

Thanks!
definitely 16G since it is not upgradable.
 

TechZeke

macrumors 68020
Jul 29, 2012
2,370
1,990
San Antonio, TX
Not true. That is a general overly used answer on this forum; nothing more.
You must be joking. Sorry, but if you have any clue about what you are doing, you know what it takes to run the software you want to run. Also, on too many of these of threads, you have half of the people saying stick with 8GB and the other half get 16GB. Half the time, the poster really just wants 16GBs and shoots down any person that tells him/her to get 8GB or vice versa.

I use AutoCAD, some photo editing software, and parallels. Other than the fact I would I get 16GB anyway because it's un-upgradeable and I could afford it, I know that if I'm going to use VMs 16GB is a must. If I'm happily running 16GB and a quad core processor and I have to wonder about the benefits of 32GB of RAM and a 12-core Mac Pro, I don't need it. The pro doing hard-core 4k video rendering/editing/music production knows he needs 32GB of RAM and a 12-core processor and there is no mystery or question.
 
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