How to increase vRAM for HD3000 graphics

Discussion in 'Mac mini' started by vista980622, Aug 19, 2014.

  1. SpacemanSpiffed macrumors regular


    Mar 27, 2013
    Pacific NW
    As a professional game developer, and graphics programmer, I can tell you that the "amount of VRAM" the OS sees isn't going to make a whit of difference on this generation of Intel iGPUs. The reason is that the Intel GPU maps a memory aperture (smaller) into System RAM for access. That's how it says "this chunk/these chunks of RAM are going to be used as GPU memory until I change the mapping again". It's like the old 8088 PC with 640K of RAM - you couldn't access the whole amount with a single segment (register), but you could map that segment almost anywhere in memory.

    Where it matters is wherever there is dedicated video memory, like the 2011 Mini with AMD 6630 and 256MB VRAM. When you have separate Video Memory, any data you want to use for graphics has to be copied, across a bus of some sort, to the video memory before it can be used. If you have more graphical data than can fit in the (remote) video memory, eventually something has to be evicted from it to make room for newer data.

    With the Intel iGPUs, nothing is actually copied - the GPU Aperture is made to point at the data, and moved if necessary.

    The current game I am working on uploads a lot of modified data to the GPU memory each frame, and the Intel drivers are smart about it and don't copy the data needlessly, so our iGPU perf is about the same as a mid-range+ dedicated GPU (we do very little 3D), which is a nice bonus, but has the testers at our publisher a bit baffled. (If we did a lot of 3D, they we would be limited by the number of EUs vs dedicated shader cores and do much worse vs the mid-range cards)

    tl;dr - messing with VRAM amount the OS thinks you have won't matter in any meaningful way.- it's all the same system memory anyway.
  2. uMBP17", Sep 12, 2017
    Last edited: Sep 12, 2017

    uMBP17" macrumors newbie

    Sep 11, 2017
    Confirmed to work on a late 2011 uMBP 17" dual GPU's (internal GPU is the IntelHD3000) and running Sierra 10.12.6

    I used the prepatched files from post #61 procedure as follows:

    1, First I logged into recovery mode (booting whilst holding CMD+R) and disabeling SIP by opening a new terminal window from the "Utilities" menu typing "csrutile disable" command in a terminal window and hit enter followed by a reboot via the apple menu.

    (Im not sure if this step is actually needed, but I didnt want to have any SIP related issues.
    SIP can be reenabled by typing "csrutile enable" like in step 1. I left SIP off since I need it off for other tweaks and installations)

    2, downloaded files from post #61 moved to the desktop (not in a folder, but all files right on the destop) and ran the kextbeast program, followed by a auto reboot.

    3, post boot I checked my "About This Mac" in the apple menu which now it displaying 1024mb iGPU, and before 512mb.

    Success!! :)

    See attached screenshot for "proof"

    Attached Files:

  3. uMBP17" macrumors newbie

    Sep 11, 2017
    Super thx!
    Worked w/o remark on my late 2011 MBP 17", macOS 10.12.6
  4. lvk4 macrumors newbie


    Sep 15, 2017
    I have tried but after the method mentioned in post #61 i have a lot of lag.
    My configuration is
    Macbook Pro Early 2011
    8 gb ram
    SSD 128 gb
    MacOsX Sierra 10.12.6
  5. EightyTwenty macrumors 6502a

    Mar 11, 2015
    It looks like everyone just ignored this post.

    Why are people doing this? It sounds like it's utterly pointless. A HD 3000 with 5 TB of RAM is no better than a standard HD 3000 off the shelf.

    Why are people doing this? What benefit do they think they will get from it?

    According to many of the replies here, doing this made performance WORSE and some even ruined their computers. And then the very next reply will be "I did it. Success! I'm so happy!"

  6. uMBP17" macrumors newbie

    Sep 11, 2017
    Well, being aware of how bad my dedicated GPU is when it comes to temp I prefer running my MBP with the dGPU off at all times.
    Since I run VirtualMachines now and then combined with other stuff as well, I really need more than 512MB of vRAM So upping it to 1024MB works very well!
    Going over and beyond 1024MB is when people have been reporting worse performance.

    Problems that comes to life with <1024MB are most likely due to using wrong procedure and/or having wrong hardware.

    Even apple them self upped my iGPU vRAM from 384MB to 512MB in a OS update.
    Since the integrated vRAM is dynamic the OS adjusts the vRAM live, so if you just sit at idle you will not use very much of the vRAm, but ASA you open up virtualbox and run a few VM, and maybe watch a youtube HD video or whatever you do, you possibly could hit the 512MB ceiling.

    I like having the headroom! :)

    If I could have 5TB I would have it, just becouse it would sound cool and annoy the crap out of people like you. Not that I need it, really :)
    --- Post Merged, Sep 16, 2017 ---
    Would you lpease type down all the steps you did. Maybe I can help out! :)
  7. lvk4 macrumors newbie


    Sep 15, 2017
    I have tried the method mentioned in the first post from 512 to 1024 and no change nothing, after i have tried one method in one post in this thread and i have replaced 3 files with kextbeast but with this i have lags.
  8. uMBP17" macrumors newbie

    Sep 11, 2017
    Well, if you dident restore to a backup after doing the first attemp, using the suggestion in first post of this thread and after that used the kextbeast app from #61 I would guess that that might be casing you problem..

    Do you have any backup from before you started your first attemp?

    The first post I didnt try myself, but I suspect its not valid on your OS version, much have been changed since that post.
    Using #61 replaces the iGPU related kext entirely which makes it better.
    You probably have some kind of conflicting data which gives you your issue.

    Hard to tell, I'm no expert here.

    My 5 cents anyhow
  9. lvk4 macrumors newbie


    Sep 15, 2017

    I have tried this method on post #61 and i have the same issues, lag
  10. yifuhood, Oct 19, 2017
    Last edited: Oct 20, 2017

    yifuhood macrumors member

    Nov 3, 2014
    MacBook Pro 2017-10-20 09-55-02.png hello macrumors members

    I have a macbook pro 13inch 2011 running 10.13, i have try post 61, but nothing happened at all. and after that I tried to install "CAT 2.0 Continuity-Activation-Tool", then the display start to lag, Displays showing external monitor 3M Vram. and nothing can fixit, i tried everything. now i reinstalls the os again .

    anyone knows for macOS 10.13, the post 61 still working , what did i do wrong? what should i do ?



    after reinstall the os 10.13, I have tried the post 61 again , with " csrutil disable " first . and it worked on my MacBook Pro 2011 13in 16gb ram.
    if you ever used any other code such as post 1, you have to recover it, and then do the post 61. and be carful with CAT (Continuity-Activation-Too), if you use CAT and post 61 together . it may cost deep ****

    thank you MFMCPDX .
  11. yifuhood, Oct 21, 2017
    Last edited: Oct 21, 2017

    yifuhood macrumors member

    Nov 3, 2014
    hi if any one knows?
    now we got the Vram to run at 1024MB, but----
    the Intel Graphic 3000, can use MAX 1700MB Vram,

    now if i code

    sudo perl -pi -e 's|\xC7\x45\xBC\x00\x00\x00\x40|\xc7\x45\xBC\x00\x00\x00\x60|g' AppleIntelSNBGraphicsFB

    ( \x40|g' will increase to 1024MB ) \x60|g' will increase the VRam to 1536MB, is it possible for the macbook pro 2011 motherboard to support it ?
  12. Tech Technologies, Oct 31, 2017
    Last edited: Oct 31, 2017

    Tech Technologies macrumors newbie

    Oct 27, 2017
    Fountain Valley

    I successful upgrade VRAM From 1GB to 2GB

    Must Backup Your AppleIntelHDGraphics3000.kext and AppleIntelSNBGraphicsFB.kext

    Here Are My Picture:


    I using these commands to upgrade from 1GB to 2GB
    From 1GB to 2GB:
    cd /S*/L*/Ext*/AppleIntelSNBGraphicsFB.kext/C*/M*

    sudo cp AppleIntelSNBGraphicsFB AppleIntelSNBGraphicsFB.backup

    sudo perl -pi -e 's|\xC7\x45\xBC\x00\x00\x00\x40|\xc7\x45\xBC\x00\x00\x00\x80|g' AppleIntelSNBGraphicsFB

    sudo touch /S*/L*/Extensions

    Add These Lines in the Info.plist at AppleIntelHD3000Graphics.kext/C*
    Have to add after VRAMOverrride the VRAMSize key, it will be like this:

    Fix Extensions With Kext Utility and Done. To avoid the Kext Utility Add Boot flag, Open Kext Utility/Contents/Resources/KU_config.plist and edit:


    Save and Run, The flag will not add each time you repair Extensions or install new kexts

    Warning: Do not use VGA display. I tried but not work

    About VGA Patch coming soon.....

    Attached Files:

  13. luisramos, Dec 6, 2017
    Last edited: Dec 6, 2017

    luisramos macrumors newbie

    Feb 28, 2013
    hmm didn't work for me on High Sierra, any ideas? I tried with the prepatched file after putting them on Desktop. SIP disabled.
    EDIT: at some point I was getting the 3mb error.

    EDT2: working now! Did as Tech Technologies said right above.

    [​IMG] [​IMG]
  14. robi62, Dec 9, 2017
    Last edited: Dec 9, 2017

    robi62 macrumors member

    Apr 29, 2013
    --- Post Merged, Dec 9, 2017 ---
    Not working for me on 10.12.6 I get a lot of lag when I open application folder icons really moving slowly although it does work in high sierra no problems at all with sierra 10.12.6 no joy went back tp 512mb nvram
    Edit managed to get it working in sierra by installing El captain kext I did not need to edit plist on kext just done script and done....

    Attached Files:

  15. CregoryNootinger macrumors newbie


    Nov 4, 2017
    This is for all of those people who don't believe this makes a difference. Trust me, it does. I opened Final Cut Pro X, and I tried using a 3D title animation, I ignored the message saying that my system was "inadequate", but it was soooo laggy. Then I remembered that this was possible and I found some kexts that someone uploaded. I installed those with a kext installer, and BOOM! It still isn't perfect, and I will probably soon try to get an eGPU setup, but this free "upgrade" works awesomely! Thank you vista980622! Works great!
  16. minman macrumors newbie

    Mar 29, 2018
    Thanks works great on High Sierra
  17. Macbookprodude macrumors regular


    Jan 1, 2018
    Hi, I am running High Sierra and its still not allowing me to see 1024 for Intel HD 3000 - Can you assist me ?
  18. alvathoni macrumors newbie

    Mar 31, 2018
  19. CA3iR0 macrumors newbie

    Dec 19, 2010

    Attached Files:

  20. minman macrumors newbie

    Mar 29, 2018
    --- Post Merged, Mar 31, 2018 ---
    unzip the file install with KextBeast in System Library Extensions but before copy your original ones Kest

    Attached Files:

  21. Macbookprodude macrumors regular


    Jan 1, 2018
    Hi, like on the 2012's with HD4000 at 1536MB - can the HD 3000 work at above 1024 or is not recommend to go that high ? The only reason why I would want the 2012 is because of USB 3.0, but the 2011 which is a 17 inch I have is a very fast machine.
    --- Post Merged, Apr 20, 2018 ---

    And is there any performance increase from 1024 to 2048mb ?
  22. Cyryl134 macrumors newbie

    Apr 24, 2018
    I have MacBook Pro mid-2009 with 9400m 256mb vram runs on High Sierra 10.13.4 (install with High Sierra Patcher)
    You have terminal instructions for my model to increase vram?
  23. brdeveloper macrumors 68020


    Apr 21, 2010
    I have a Late-2009 one. That would be nice if it worked.
  24. NisseA macrumors newbie

    Jun 12, 2018
    did not work on my MacBook Pro 13 early 2011 with high Sierra 10.13.5.. disabled SIP and used the pre-patched files with kext utility but still shows 384 mb
  25. Sicctt macrumors newbie

    Jun 29, 2018
    Not sure if it may work on the mbp but got it working on my mid 2011 mini running 10.13.5

    What I did was downloaded the files from post #61 then got a newer version of kextbeast (google it) place all files on the desktop including the newest kextbeast then disable SIP (google it ) run kextbeast after went from 512 to 1024mb
    --- Post Merged, Jun 29, 2018 ---
    Hope that helps

    Attached Files:

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