How to increase vRAM for HD3000 graphics

terminal command increase vram hd3000 graphics (mac mini 2011 or macbook pro 2011)

*mb - amount of vram have. can find in system profiler.

256mb 384mb

quote

cd /s*/l*/ext*/appleintelsnbgraphicsfb.kext/c*/m*

sudo cp appleintelsnbgraphicsfb appleintelsnbgraphicsfb.backup

sudo perl -pi -e 's|\xc7\x45\xbc\x00\x00\x00\x12|\xc7\x45\xbc\x00\x00\x00\x18|g' appleintelsnbgraphicsfb

sudo touch /s*/l*/extensions

click expand...

from 256mb 512mb

quote

cd /s*/l*/ext*/appleintelsnbgraphicsfb.kext/c*/m*

sudo cp appleintelsnbgraphicsfb appleintelsnbgraphicsfb.backup

sudo perl -pi -e 's|\xc7\x45\xbc\x00\x00\x00\x12|\xc7\x45\xbc\x00\x00\x00\x20|g' appleintelsnbgraphicsfb

sudo touch /s*/l*/extensions

click expand...

from 384mb 1gb

quote

cd /s*/l*/ext*/appleintelsnbgraphicsfb.kext/c*/m*

sudo cp appleintelsnbgraphicsfb appleintelsnbgraphicsfb.backup

sudo perl -pi -e 's|\xc7\x45\xbc\x00\x00\x00\x18|\xc7\x45\xbc\x00\x00\x00\x40|g' appleintelsnbgraphicsfb

sudo touch /s*/l*/extensions

click expand...

from 384mb 512mb

quote

cd /s*/l*/ext*/appleintelsnbgraphicsfb.kext/c*/m*

sudo cp appleintelsnbgraphicsfb appleintelsnbgraphicsfb.backup

sudo perl -pi -e 's|\xc7\x45\xbc\x00\x00\x00\x18|\xc7\x45\xbc\x00\x00\x00\x20|g' appleintelsnbgraphicsfb

sudo touch /s*/l*/extensions

click expand...

from 512mb 1gb

quote

cd /s*/l*/ext*/appleintelsnbgraphicsfb.kext/c*/m*

sudo cp appleintelsnbgraphicsfb appleintelsnbgraphicsfb.backup

sudo perl -pi -e 's|\xc7\x45\xbc\x00\x00\x00\x20|\xc7\x45\xbc\x00\x00\x00\x40|g' appleintelsnbgraphicsfb

sudo touch /s*/l*/extensions

click expand...

(thanks user grama following tutorial!)
when done above, edit info.plist @ appleintelhd3000graphics.kext/c*
have add after vramoverrride vramsize key, this:
<key>vramoverride</key>
<integer>0</integer>
<key>vramsize</key>
<integer>1024</integer>

add these last 2 lines (vramsize integer value should match value picked edit first kext, save , patch , fix extensions kext utility , go!

 

thanks post. have wondered before if changing memory allocation possible

these commands work intel hd graphics 4000?

also, have tried allocating 2 gb of memory integrated graphics card (using "80" instead of "40" in command)?

finally, did run benchmarks , did experience unwanted side effects (e.g. reduced os stability or increased heat or noise)?

 

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