How hot does your Retina Macbook with GT750 get?

Discussion in 'MacBook Pro' started by MikeVera, May 13, 2014.

  1. MikeVera macrumors regular

    May 5, 2014
    Hey guys,

    So I ended up switching out for a 15inch model with the Nvidia card in it, and I was wondering for those of you that have it, does it get fairly warm?

    Especially in boot camp do you find that the top of the keyboard area gets warm from little activity?

    I'm wondering if this is normal.... I have had quad core i7 Macbooks before that didn't get warm so arbitrarily (i.e. no demanding tasks running).
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    With regards to boot camp, the power savings/cooling settings are not there, so you're running the computer full bore which is going to create more heat.

    I have a 2012 rMBP so its not the same thing but I typically see temps in the 37c to 42c range for most activities.
  3. 827538 macrumors 65816

    Jul 3, 2013
    Yeh it gets pretty warm if I'm using it under Windows, last like the other poster said there's no power savings really. It's using the dGPU.
    I wouldn't worry about it, I've been gaming on mine for 8 hour sessions for months now without an issue even when it gets really hot.
    Even under Mavericks things like Flash really cause it to get hot.
  4. ColdCase macrumors 68030

    Feb 10, 2008
    The power connector area gets quite warm when doing nothing and driving an external display, Mac OS or otherwise.

    Processor intensive tasks will also warm it up, but the fans also spin faster. 70-75C GPU diode temps are not uncommon. The CPU runs cooler. The Magsafe connector can be uncomfortably warm.
  5. GGJstudios macrumors Westmere


    May 16, 2008
    The heat you're experiencing with your MBP is perfectly normal. If you're not already doing so, use iStat Pro (free) or iStat Menus ($16) to get accurate readings of your temps, fan speeds, etc., rather than relying on your sense of touch or sound. A forum member has posted a copy of iStat Pro that has been "tweaked" to enhance compatibility with Mountain Lion. You can download it here.
    The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat. CPU Tjmax = 105C (221F), GPU Tjmax = 100C (212F) on i3, i5, i7 processors. (Source: Intel)
    Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it. Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. This is normal. If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. It's just your Mac doing its job to maintain temps within the normal range.
    It is also quite normal for your Mac to become extremely hot to the touch during intensive operations. The aluminum body transfers heat more effectively than other materials used in computer casings, so you will feel the heat more. This doesn't indicate that it's overheating and will not harm the computer to be hot to the touch.
    Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis), or 1200 for the newest MBAs. Older iMacs have 3 fans with minimum speeds in the 800-1200 range, while the newest iMacs have a single fan, spinning at a minimum of about 1400 rpm. They will spin faster as needed to keep temps at a safe level. If your fans are spinning up without increased heat, try resetting the SMC. (PRAM/NVRAM has nothing to do with these issues, so resetting it will not help.)
    The intake and exhaust vents are in the back of the computer near the hinge on all notebooks in the MacBook line (except the new MBP with retina display, which has intake vents along the sides at the bottom). The iMac vent is a slot on the back near the top of the computer. Make sure the vents remain unblocked to allow your computer to perform at its best. For Flash-related issues:
  6. 827538 macrumors 65816

    Jul 3, 2013
    Think my GPU tops out at 87*C under max load after hours of usage. Within thermal limits so its fine. Not sure what my CPU hits, will need to measure.

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