Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Updated Skylake 27" iMac this fall?
- Thread starter FrankySavvy
- Start date
- Sort by reaction score
You are wrong... If you don't mix different types of modules (speed or CL), iMacs since at least 2013 can handle 2133 MHz memory without a problem.
And it makes sens, because the memory controller is in the Intel CPU, and today i5 or i7 can handle 2400MHz modules
Yes it is
Since asking this RAM question I went to geekbench browser.. Go there, select 64bit multicore, click the last year's retina imac and arrange by result. When you open the highest score you will see that it had RAM running at 2400MHz. So based on this you can run at least 2400MHz RAM on all new iMacs if you want to (if remove the original slower one first). I have ordered Kingston HyperX 2133MHz CL11 for my iMac now. Couldn't find any 2400MHz and I'd guess the price were higher and CAS latency would be more when you buy higher MHz RAM so in the end I doubt the moving between 2133 and 2400 would benefit much. The 32Gb of 2133MHz CL11 cost me almost double what Samsung 1866 CL11 would have costed.. but I thought since I will never update the RAM again, it doesn't matter... and it still only costed the same what 16Gb of 1866 CL13 slow RAM directly from Apple would have costed. So I got twice the RAM and that is about 30-35% faster for same cost.
There's no difference between both, 1866mhz vs 2133mhz. In real performance. nothing AT ALL.
you guys are getting obssed with maximum speed while in fact you just spend a huge amount of money to get unnoticeable/null improvement.
Stop wasting money and start enjoying your machines !!!
you guys are getting obssed with maximum speed while in fact you just spend a huge amount of money to get unnoticeable/null improvement.
Stop wasting money and start enjoying your machines !!!
A few percent of performance increase for CPU demanding tasks.
And 2133MHz memory is cheaper than the Apple (slow...) RAM options
I think I'll order this ram. I seems like it fits the exact spec of the imac
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820104547&_ga=1.46686050.419657042.1444177391
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820104547&_ga=1.46686050.419657042.1444177391
I'll be having terabytes worth of R3D files converted to prores each time I have a project. There will be tons of other video encoding, compression and effect calculation renderings going on. I've literally had my old iMac sometimes converting files two days a row before I can start working.... if I can cut some of the time down I will... and really that 32Gbs of fast ram was still cheaper than 16Gbs of slow Apple RAM... so in that sense I still saved money.
I think the point is that faster memory will give you at best a 14% boost on one particular benchmark and then it would be a purely theoretical maximum benefit, not necessarily a real world benefit.
I would hope that you try running a video conversion before adding the RAM and again afterwards so you can determine a real world benefit in the upgrade for your particular use and update the forum with the results.
Personally my opinion would be if you were pushing an iMac to the extent that it was two days solid processing (and I'm assuming that was a top end CPU doing the grunt work) then maybe an iMac isn't the best machine for you.
Perhaps a MacPro or the Hackintosh route would give you greater benefits than putting faster memory in an iMac.
Yes, I'm aware it doesn't translate to real world performance boost same way as it translates on benchmark. On some benchmarks and tests the difference will be really small, maybe like one second.. but then again we have to remember that benchmark may only run for a minute while like I said sometimes it takes days to convert the footage. Anyways financially the difference was so small compared to price of the whole computer that it didn't make much sense to hold back here.
Hackintosh was something I considered but at the moment the processor support for skylake is still not there. Also it is always a hassle and I just don't want to fight with it and make sure every time I need to upgrade the OS that everything in it will work. Mac Pro then again is way too old at the moment and iMac pretty much beats it unless you go 8-core. Maybe Apple will upgrade it next year once the new generation of GPUs really roll out (though R9 Fury is already that and I would have been so happy if iMac had Nano in it). I wouldn't be surprised if they went nVidia again when pascal is out if it really does what it is promised to do. But who knows. In the end while I do post and editing at times, it is not my primary job cause I work as director and cinematographer... and for bigger projects the post will be done in proper post houses who have systems that cost ten fold. But sometimes you still have to be able to adjust things on your own. Go through the footage, create references for the posthouse to show them what's the direction you want to go etc.
Can I get a link on geekbench? I can't find any Skylake iMacs in the search results
I was comparing to LAST YEAR top result on iMac 5K 64bit multi-core category.
If you want to find this years 5K then you have to surf the latest results and look for iMac 17,1. There are already quite a few there including 6700K models.. I just posted some links with comparison to 2011 top of the line iMac on another topic
http://browser.primatelabs.com/geekbench3/compare/3885176?baseline=412700
http://browser.primatelabs.com/geekbench3/compare/3883762?baseline=412700
You can just remove the baseline if it distracts you
Damn, now I realize why my searches newer worked and I went searching for them manually.. cause I always put a space between iMac and 17,1 which results nothing
I am saying this AGAIN... I was comparing to LAST YEAR's 2014 Retina iMac that has the highest scrore... it has 2400MHz memory on it
1600MHz is probably result of mixing different types of RAM.. he has 24Gb which indicates he added himself 16Gb to the stock 8Gb
But for THIRD TIME... I was talking about 2014 NON-Skylake top iMac having 2400MHz RAM:
https://browser.primatelabs.com/geekbench3/2674311
Just to clarify, there is no 204 pin 2400mhz memory that I'm aware of. The highest clock speed that will fit is 2133. Could be wrong, but I can't find any 2400.
I am hopeful my Kingston 2133MHz hypeX will run at 2400MHz because they say it can automatically overclock itself to that speed (anything between 1600-2400) if the memory controller supports it. Though it might not cause in this mode it might draw more than 1.35V, I don't know.. BUT since someone has last years iMac running at 2400MHz it has to be possible somehow
Ordered mine a day after launch day (needed some time to ponder if I really "needed" to wait for USB-C and TB3... decided I didn't!). It arrived yesterday.
I wrote up a quick first impression and 1.5 days of usage "review" on this thread:
https://forums.macrumors.com/thread...at-and-fan-noise.1831739/page-7#post-22117100
TLDR summary: Loving it terribly so far and will very likely keep it. upgrading from late-2011 27inch i7 with OWC SSD (itself, no slouch of a machine, but the new one blows the 2011 away in every respect, including fan "noise"/heat issues, or lack thereof).
cheers!
Huh, I ordered mine with the exact same configuration a day prior and mine's still "processing." Had some issues with the stupid payments being declined, but they tell me it's set to deliver the 20th (today) through the 22nd (two in two days).
Has anybody else received theirs?
EDIT: And yes, I'm aware that the BTO options can take a while, sometimes weeks. But usually they'll tell you "Available to Ship: 3 weeks" or something. They kept telling me it was "available to ship" in 3-5 business days and would deliver either by today, or by the 22nd.
Did you finally receive yours and if so, how's it working out?
Totally loving mine more and more, the more I use it, and definitely keeping it. have ordered a ram upgrade from OWC.
Nope… sadly not. They kept declining the payment for some time (Called Bank of America twice, they told me it's processing normally, Apple was just declining it for whatever reason), but then I thought I got that resolved last week… turns out they didn't even bother processing the payment until YESTERDAY (I ordered it last tuesday). I got my iMac with a SuperDrive, so they decided to credit me back for the amount I spent for the SuperDrive, so… they tried, but… still. Had this not happened, I would've received it by today.
I'm seeing all these posts of others already getting theirs (with the same configurations), and mine had to wait because of some issue they were having with my debit card.
Whatever, I guess the free SuperDrive will do. I already have all the RAM (Also got it from OWC), so when it arrives, I'll upgrade it to 32GB.
I'm just dying to get it because I'm replacing my 20 inch iMac from 2008 with its 1680x1050 display, 2.66GHz Core 2 Duo, 4GB of 800MHz DDR2 RAM, 320GB 7200rpm HDD, and its ATI Radeon HD 2600 PRO with 256MB of GDDR3 graphics memory. Feels like such a dinosaur after using my iPad Air 2 and iPhone 6s Plus.
Sorry to hear about the decline problems. However, Apple typically doesn't charge your credit card until they are actually building the BTO. I ordered mine last week Friday. It got charged on my credit card on Tuesday and shipped out today. Expecting it on Monday!