Hi! Go to macsales.com. That's the website of US-based OWC (Other World Computing). Look for iMac RAM upgrade kits. But before ordering, better know the specifications of your RAM. Your order must exactly be the same as the RAM you currently have in your iMac.

ic. good that it is still acceptable for u as i know HDD is very slow.

i think i will go for SSD for my new iMac.

The supplied HDD is 7200rpm, so I guess it's still better than 5400. I can't complain about that.

Btw, does anyone know what MacOS program runs 5K videos? The videos carry the extension *.r3d

VLC can run rite?

No, oredi tried but cannot. Maybe vlc can play 5K but in another file format, just dunno what.

the ram spec is different for every mac ? i mean same model of the imac

The HDD version is indeed very slow (trust me) We need at least a "Fusion Drive" version.

I also think so. It just simply makes a iMac appeared like 10 years ago desktop pc with the Super slow HDD as compared Apple ultra fast SSD.

The HDD is about 80++MB per Sec read write speed while SSD is close to 2GB per Sec.

This post has been edited by westlife: Jun 19 2017, 11:15 PM

I've found a video player that can play 8K, 6K, 5K and 4K videos, especially in the r3d format. Go to www.red.com and download their redcine-x player.

Yes, different models of iMac have different RAM specs. For eg. the 2017 27" iMac is DDR4 2400MHz, 21.5" is 2133MHz speed.

And if you purchase the late 2015 iMac, the RAMs are DDR3 running at 1867MHz.

So, it is important you find out the RAM in your iMac before upgrading RAMs.

mine is 2017 imac 27" .. so i just look for DDR4 2400MHz should be fine right?

It's only half fine. To get the complete picture and full specs, click on the Apple logo on top left corner. Go to 'About this Mac'. Next, click on 'Memory'.

In that window, you'll see a small print "Memory upgrade instructions" or something like that, I can't remember clearly. <I'm on my Windows laptop currently>. Click on that small print. It will bring you to a special page that lists out exactly the RAM specs you need for your iMac. It is more detail than just "DDR4 2400MHz". Once you have that full info, then go to Macsales.com and make the purchase based on that.

<<But actually, having said all that, Macsales.com website is so good that all you really need to do is just to select you have a 2017 27" iMac 3.2GHz (for example) and it will point you in the right direction for which RAM to recommend.>> Nonetheless though, I'd still advise you to know your way around your own iMac machine and do those steps that I've suggested above.

Good luck! :-)

ic.. my mac havent reach yet.. plan to get before it.. haha.. but i think better to wait it come first only buy.

thanks ya

Oh, you ordered from Apple Malaysia online? When is it arriving?

Yeah, I agree you can upgrade memory later on after you have had time to play with your iMac first. It's already a pretty powerful machine, and better than my late 2015 version.

ya. i order from apple store online .. they write estimate 29/6 .. hopefully on time

better to get it later. 8gb ram maybe sufficient for most ppl.

plus 2017, ssd is a lot faster, kabe lake processor is faster, graphic card is better, u should have a much better and snappier experience than any previous models.

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This post has been edited by ASAP: Jun 28 2017, 01:58 PM

Have your iMac arrived now?

yup..received today.. im going bac later for unboxing XD

Ooh, fun times ahead. :-)
Congratulations on getting it. You have been really patient, I must say that.