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Last thing, values seen on Istat (and any utility I know on OS X) are, for an unknown reason, different from what you put on the bios. It doesn't mean that your overclock don't work, it's just displayed by a different manner (don't asks me why !). But if you modify your bios overclock, there...

Hey Glennv ! Still around, since the last bench post I've not updated my system, that's why there was no update about it :) Can't do a long answer now but will be more aviable in 48h :) To be clear, you flashed your GC in windows, following instructions in my fist post to hard code...

Confirmed improvement :thumbup: GTX 980 Bios modded @ 1447 Mhz Core / 8000 Mhz Memory (previous test was with same overclock) El Capitan 10.11.3 (15D21) NVIDIA Web Drivers 346.03.05f01 CUDA Driver Version: 7.5.25 19 Seconds !

I knew i seen it somewhere ... Cuz I replied to it :lol: Thanks for the link !! So 23 seconds with 970 and same drivers, 19 with my 980, quite proportional to their calculus power difference :thumbup:

It's still major improvement compared to older drivers for me ;) (and confirm that's it's totally driver related). First real bump in performances since 10.10.5 and nothing we can do to benefit from it except update to El Capitan and install them. Nearly totally convicted that it's Nvidia...

Added my results in the Google doc ;) I started a topic about overclocking NVIDIA GPU in OSX (it's working :D) ... and finished by benchmarking with my GTX 980 on different OSX versions, Nvidia Drivers, SMBIOS, kext edits etc ... to try to understand impact of everything on perfs and how it...

Keeping updates for the record even if it don't seems to passionate :mrgreen: I updated Clover from 3333 to 3346 then updated from Yosemite 10.10.5 (14F1605) to El Capitan 10.11.3 (15D21) thanks to Tonymacx86 how-to ! Was flawless, just had to set nv_disable=1 at every reboot until update done...

Some news ! Continued to do stuffs during the night :D Seems like I was at maximum with 10.10.5 (14f27) so I moved further to 14F1605 (after security update). Update only broken Ethernet and Audio, put them back with Kext Utility and it worked fine. If you wanna jump to conclusions : no major...

Little test during my work on overclocking/optimize graphic perfs on Mac (will update my post about it with this result): MacPro 5.1 with modified AppleGraphicsPowerManagement.kext Yosemite 10.10.5 (14F1605) (Security patch install) NVIDIA Web Drivers 346.02.03f05 CUDA Driver Version: 7.5.25 GTX...

For reference on older graphic drivers: GTX 980 Yosemite 10.10.5 (14f27) Nvidia WebDriver-346.02.03f01 CUDA Driver Version: 7.5.25 34 seconds

Reserved in case of working procedure found :P

GTX 9xx overclock on OSX - Tests, Effects, Issues, Benchs Hi guys ! First of all, i would like to thanks you all for your work/tutorial/posts/stuffs ! My hackintosh is working (still not perfect but i'm still on it :p) thanks to you all ! It's important to note that it's quite new to me, that...