Hot answers tagged graphics
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Graphics switching is where the integrated graphics is switched for the discreet graphics when more performance is required (and where performance is more important than battery life & heat output).
You can see the current graphics card that is enabled, and forcefully switch between the two, with gfxCardStatus.
Integrated graphics should be used ...
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Most recent 15" MacBook Pros have dual graphics cards — one integrated into the CPU (the Intel 3000), and one discrete card (the Radeon). It switches dynamically based on what programs are running and how they use the GPU.
Some more info from Apple:
MacBook Pro: How to determine which graphics card is in use
MacBook Pro: How to set graphics performance
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I had this and fixed it!
Basically something was overheating. It would freeze as it hit the overheat temperature and then resolve once the temperature dropped about 5 degrees celsius.
So I downloaded some random fan speed app (link below), cranked it up to full speed and haven't had a problem since!
http://www.eidac.de/
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