tktagmedia Posted September 24, 2015 Share Posted September 24, 2015 Hello all! Just wanted to share a tip with you all that has boosted and effectively maxed out the performance of the nVidia card. After following the performance tuning tutorials and changing my profile to MBP 5,1, I was satisfied with the performance I was getting, but my experience was being plagued by inexplicable stuttering frame rates (just in the UI!) and throttled-back battery performance (HD YouTube videos became a slideshow). There would be fleeting moments where everything was smooth and fast, so I knew the card was still being held back by something. After doing some research, I discovered this tutorial on disabling the AppleGraphicsPowerManagement.kext: After disabling the kext, I have to say that the difference is nothing short of absolutely stunning: full, buttery-smooth, consistent performance (even on battery), at minimal cost of battery life.* *Your mileage is going to vary here: I have a 9-cell extended life battery, and after running a handful of stress tests, I found I'm only losing about 15-25 minutes on a full charge. A small price to pay for native-like performance! If you have a standard or stock battery, I can't tell you what sort of differences you're going to see. So that's all I wanted to share with you. Hope you're all having an amazing day, and take care! Link to comment Share on other sites More sharing options...
Administrators Hervé Posted September 24, 2015 Administrators Share Posted September 24, 2015 Actually, tuning the system for optimised performance in terms of CPU + GPU throttling is much better than disabling AGPM altogether (which is a bit harsh) and will avoid unnecessary heat and battery consumption. Given the well-known fragility and eventual inevitable failure of the nVidia GPUs on those Latitude D laptops, I would actually strongly discourage disabling AGPM...https://osxlatitude.com/index.php?/topic/2673-performance-tuning-with-fakesmc/https://osxlatitude.com/index.php?/topic/7807-nvidia-gpu-performance-tuning-with-agpm/ Link to comment Share on other sites More sharing options...
tktagmedia Posted September 25, 2015 Author Share Posted September 25, 2015 Thanks for that! Just finished following the agpm tutorial and it achieved the same results..probably with better battery life. Link to comment Share on other sites More sharing options...
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