So the way the Mac works with a dedicated video card is it uses the integrated graphics on the CPU for as much as it can then hands off to the dedicated video card. Mac's come with Intel processors and they come with integrated graphics which performs some graphics capability, but can't handle 3D very well at all.

Safari might have a memory leak, it also could be now with 64 bit everyone is rushing out to grab as much RAM as they can, trying to turn their browsers into platforms.Īfter all, if you think about it, browsers are becoming so powerful that they can actually run software within them, so perhaps Apple is messing with Chrome and Firefox's memory so they can't grow too large and takeover? Just my thoughts.ģD games (or anything 3D) works the graphics and if you have a dedicated video card (the 15' does, the 13' does not) then that heats up too, thus the fans go up.ĬPU intensive programs will heat up the processors and the fans go up. I know Firefox has a slight issue with the way it handles RAM, so does Chrome, it has to do with the add-ons and how the unused RAM gets returned for using for another program. I have never seen/felt a computer get this hot before. However, when I play games (like BioShock, Sims etc) Mac just heats up immensly and fans kick in. The systems heat up is as normal as that of a PC while running on its normal situation. During the normal usuage the fans don't make a noise (even with multiple apps that are not burden on the RAM). Also happened with Safari a couple of times.īut my main concern and query is the point no. I have noticed this is usually when Firefox is running in the background. Occassionally it freezes up when more then one apps are running. I recently bought MacBook Pro (15 inch, 2.2 GHz, late 2011, OS X Lion) and also I am new to Mac. So I am going to put my case a new, although I believe the answers are going to be the same as on other similar discussions. But none of the discussions has satisfied my the concerns I have with my system.

I know the heating up issue has been raised several times all over the internet.

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