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All replies
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Helpful answers
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Oct 15, 2015 7:39 AM in response to superunisonby woodmeister50,At this point, I just find it difficult to see how someone could need 64GB
on a single user machine, unless perhaps allocating a big chunk of it
as RAM disk.
Then again, I guess you could open every single app you would ever intend to ever use
all at once and have them load at boot. Even so.......
Then again, way back when, Bill Gates said no one would ever need more 640KB .
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Oct 15, 2015 1:27 PM in response to superunisonby SlickRick,I was in the same boat but went for the latter.
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Oct 15, 2015 1:32 PM in response to woodmeister50by SlickRick,Photoshop and lightroom running side by side. Add a few open plugins and memory is a must or if you are editing video.
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Oct 15, 2015 2:45 PM in response to SlickRickby babowa,Well, I edit a fair amount of videos and I'm doing it with 16 GB RAM - not too bad. However, I don't do it professionally where I'm doing something else while that is going on - if it's a lengthy HD video, I'll walk away and do something else allowing the Mac to focus its entire attention on one task. Gotta remember: even if you have a Mac Pro with the fastest processor and a boatload of RAM, video editing/rendering will take time. A friend of mine worked for one of the major TV stations; they have several running 24/7 editing the reporter's footage as it comes in to ready it for the news and it still takes its time.
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Oct 17, 2015 10:54 PM in response to anshumgby SteveW25561,Back to the original question: the OWC is listing the exact same 1667 MHz spec
2 x 8GB 1867 MHZ DDR3 SO-DIMM PC3-14900 = $134
http://eshop.macsales.com/item/OWC/1867DDR3S16P/Reviews
BUT, the more common spec is DDR3 1866 (PC3-14900)
For example, this kit on Amazon.com sells for just $88:
Crucial Ballistix Sport 16GB Kit (8GBx2) DDR3 1866 (PC3-14900) 204-Pin SODIMM Memory BLS2K8G3N18AES4 / BLS2C8G3N18AES4
http://www.amazon.com/Crucial-Ballistix-PC3-14900-BLS2K8G3N18AES4-BLS2C8G3N18AES 4/dp/B00DSGLMSM
To me, it looks like it will fit (204 pin SODIMM) , and the decription is:
BLS2K8G3N18AES4 is a 16GB Kit containing (2) 8GB DDR3 modules that operates at speeds up to 1866 MT/s and has a CL10 latency with extended timings of 10-10-10-30. It is Performance and is non-ECC. It conforms to the industry standard SODIMM layout of 204 pins and is compatible with computers that take DDR3 SODIMM memory.
It appears the new late 2015 27 " iMac uses PC3-14900 RAM, so is that extra MHz an important issue (1867 vs 1866) -- it doesn't seem significant to me, yet it seems so oddly specific.Thoughts? -
Oct 18, 2015 8:49 AM in response to SteveW25561by Bringer42,I believe it is just the way they are rounding. The actual spec for PC3-14900 is 1866 2/3 according to Wikipedia: https://en.wikipedia.org/wiki/DDR3_SDRAM
Apple & OWC are rounding up. Most manufacturers are not.
I bought 2 pairs of the Crucial modules that you linked for my new iMac (due to arrive next week).
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Oct 18, 2015 9:25 AM in response to Bringer42by SlickRick,Please keep us posted if they work or not. Thanks
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Oct 18, 2015 10:03 AM in response to Bringer42by SlickRick,I Bought two of the new 1867mhz 16GB chips. I wonder if those crucial ballistix modules you mention and purchased in 1866mhz, may be too thick to fit in the iMac. I found these that don't have the ballistix cover just in case.
http://www.amazon.com/gp/aw/d/B00JCRZ6XS/ref=psd_mlt_nbc_B00DSGLMSM_pb
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Oct 18, 2015 7:41 PM in response to anshumgby Douglas110,I am also looking at the late 2015 27" iMac. I probably only need 16GB of RAM, but it is actually less expensive to buy the 8GB version from Apple and add 16GB of RAM (2x 8GB) from OWC or Crucial and getting a total of 24GB. Is there a downside to this approach vs. getting the 16GB configuration from Apple?
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Oct 18, 2015 7:47 PM in response to Douglas110by babowa,Absolutely not - I've always purchased my Macs in a standard RAM configuration because of Apple's prices and then added more from OWC later.
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Oct 19, 2015 12:11 AM in response to anshumgby SlickRick,Just wanted to say my new Mac shipped! Can't wait...
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Oct 19, 2015 5:13 PM in response to SlickRickby Bringer42,The memory arrived today (5k iMac is still expected by Friday). I don't think thickness of the ballistix memory will be an issue. The 'cover' is just a sticker. There are stickers on both sides of the memory modules, but no metal case or heat sink over the chips.
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Oct 19, 2015 5:56 PM in response to Bringer42by SlickRick,Cool, keep us posted of the outcome. My iMac is due to arrive Thursday but the memory is on back order.
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Oct 19, 2015 6:26 PM in response to Bringer42by SteveW25561,I also ordered the Ballistix modules I listed -- I figured most SODIMMs will be small enough for laptops. Glad to hear they aren't thick. My iMac arrives in about 10 days.
- Steve
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