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Hackintosh GPU half speed, proving needed!


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[updated]:

 

I am thinking that Apple is doing something special to make the graphic performance of hackintosh staying half. I don't have many cards to prove this. If you guys are interested, please post CUDA-Z screenshot compared to CUDA-Z in Windows.

 

CUDA-Z can be found here:

http://cuda-z.sourceforge.net/

 

[Old Post]

I thought I had built a perfect mackintosh, but I was wrong. The GPU kept running at half speed :(

I changed smbios from MacPro 3,1 to iMac 12,2, and I noticed that AppleGraphicsPowerManagement.kext was loaded, but the GPU was still running half speed no matter I kept AppleGraphicsPowerManagement.kext or had it removed.

Please see the pictures. Performance in Windows 7 is much higher than that in OS X.

 

post-35467-0-09382300-1366784859_thumb.jpg

post-35467-0-95957700-1366784872_thumb.jpg

 

=== Software ===

OS X: Mountain Lion 10.8.3

Method:Un1beast + Mu1tibeast + DSDT

CPU Speedstep: Perfect

Sleep, Wakeup, Restart, Shutdown: Perfect

LAN, Audio: Perfect (Yes, even recording from mic)

 

=== Hardware ===

Gigabyte GA-EP43-US3L

Pentium Dual Core E6300

Nanya 2GB DDR2-1066 *2

Gigabyte GeForce GT240 with 512MB GDDR5

WD 320G SATA HDD

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I re-flashed the bios of GT240, nothing changed. I removed

AppleGraphicsPowerManagement.kext in order to keep the gpu running at full speed, but it kept half of the speed it should be. I edited the plist file in

AppleGraphicsPowerManagement.kext, the problem still exists.

I am thinking that Apple is doing something special to make the graphic performance of hackintosh staying half. I don't have many cards to prove this. If you guys are interested, please post CUDA-Z screenshot compared to CUDA-Z in Windows.

CUDA-Z can be found here:

http://cuda-z.sourceforge.net/

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  • 2 weeks later...

Congratulations. Your GPU works just right both on Windows and Mac.

I think it might be the problem that GT240 is not compatible enough with OS X.

 

Mine isn't running as fast on my ML drive as on my windows. But it isn't so noticeable like your's.

 

 

http://postimg.org/image/l40o2s2jl/

 

http://postimg.org/image/wp363pn0t/

 

Don't know how to attach it like you did.

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