1. iMore Question's Avatar
    New 27 " iMac i7 4ghz, 16gb ram
    Magic Trackpad 2
    Photo editing using PScc and Lightroom CC
    Some Video editing with Premier Pro, probably from a yet to be purchased iPhone 6s + 64gb

    Which Video Card, 4gb or 2gb do I want??? and WHY????

    Thank you much for taking the time to respond.
    10-18-2015 07:30 PM
  2. Beyond Fire's Avatar
    While I don't do any type of photo or video editing myself, I checked the website for those programs you listed and they recommended 2gb of vram. Maybe someone with some actual hands on experience with those programs can chime in.
    10-18-2015 08:48 PM
  3. pjr99's Avatar
    Thank you much for your quick response.
    10-18-2015 08:56 PM
  4. boldblue737's Avatar
    Upgrade the memory from STOCK 8GB to your 16GB after your purchase for far less than half the cost Apple is charging (takes a brief minute to do easily) and that gives you the money to go from 2GB to 4GB on the 395X card at no additional cost.
    10-20-2015 04:45 PM
  5. pjr99's Avatar
    Excellent idea..........but..........what are the specs on the memory? I called G.Skill and they were not sure. I called Apple Corporate and got hung-up on. I called my local Apple Store in Boca Raton, FL and spoke to a Tech that tried his hardest to find the specs.
    We came up with the following:
    8GB (two 4GB) of 1867MHz DDR3 memory; four SO-DIMM slots, user accessible
    Configurable to 16GB or 32GB

    G.Skill came up with: 4 - 8gb F3-1866V11Q-32GRSL

    If I could confirm this, I would order the iMac w/8gb and replace the memory. Do we need 'ECC' mem...no one seems to know. The local store does not have a New iMac in stock to review........arghhhhhhhhhhhhhhhhhh
    I want to place an order.

    Also, what is the benefit of the 4gb Video card?

    Many thanks,
    10-20-2015 08:59 PM
  6. SprSynJn's Avatar
    I would go for the 4GB if those applications recommend 2. Just to be sure. You wouldn't need to upgrade your computer for a while as well.
    10-20-2015 11:25 PM
  7. dwash59's Avatar
    You don't need ECC memory. i7 processors don't support ECC memory.

    The stock iMac ships with 2x4GB sticks. Since there are 4 slots, you can just buy another 2 sticks to have 4x4GB = 16 GB.

    You can search newegg or ask G-skill about F3-1866C11D-8GRSL (I would give you a link, but iMore forum says I need to have 10 posts to give you a link.)
    10-21-2015 08:07 AM
  8. pjr99's Avatar
    Thank you, I did speak to G.Skill yesterday. They recommended the following: F3-1866C11Q-32GRSL.
    I've decided to go for 32gb. The problem is, the tech was not 100% sure if this will work. He recommended purchasing from NewEgg. However, NewEgg appears to charge a 15% restocking fee.
    Should we consider Buffered or Non-buffered memory.........this seems to be more difficult than it needs to be...........
    10-21-2015 08:16 AM
  9. halw's Avatar
    Have you checked Crucial for memory?
    10-24-2015 08:28 PM
  10. Trees's Avatar
    Crucial is a good option. https://forums.imore.com/e?link=http...token=flsup9AV is another place to try. I've had a good experience getting RAM upgrades from them.
    iMac Memory Upgrades Up to 32GB From OWC
    10-24-2015 11:17 PM
  11. Mike1138's Avatar
    Your are probably okay with 2GB GPU. You will likely see more performance gains in Premiere Pro than PS or LR, but unless you are really pushing things I don't think you need the 4GB.
    10-27-2015 10:05 AM

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