rMBP Temperatures Idle and Stress

Discussion in 'MacBook Pro' started by koyoot, Jul 12, 2013.

  1. koyoot macrumors 601


    Jun 5, 2012
    Im considering buying an rMBP but im not sure about the thermals in it.

    I would like to see in this topic any data about the temperatures in rMBP both in idle and in stress. All data and all versions of rMBP will be welcome.

    Temperatures when playing games will be most welcome ;).
  2. GGJstudios macrumors Westmere


    May 16, 2008
    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). iMacs have 3 fans with minimum speeds in the 800-1200 range. 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 Mac notebooks (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:
  3. Doward macrumors 6502a

    Feb 21, 2013
    All MacBook Pros have the same basic thermal profile.

    When operating *correctly* (which means no GOBS of heatsink compound), you should have a gradual ramp up of fans up to ~95C, and you shouldn't exceed 95C under any circumstances.

    Under heavy gaming, you should see 75-85C.
  4. koyoot thread starter macrumors 601


    Jun 5, 2012
    Yes, I know it, but I Was thinking what temperatures are having present users of rMBPs :D

    All that information you give me I already know. I dont know, how your specific computers are working in this case. Whats your temperatures in Idle and Stress?
  5. Doward macrumors 6502a

    Feb 21, 2013
    I don't have a rMBP, and you specifically asked for a rMBP.

    My idle temps (after lapping/arctic silver 5:
  6. BuCkDoG macrumors 6502

    Jun 13, 2013
    Hello koyoot. I have had my Retina MacBook Pro since April and it has been nothing short of incredible. I had done ALOT of research prior to buying one, so hopefully my opinion counts for you. With regards to your question about temperatures during idle and stress, for the most part, this MacBook is quite cool in comparison to others. Im sure you are aware of the revamped cooling system and it appears to be doing its job quite nicely. For measurements, i currently use SMC Fan Control, iStat Pro, and iStat Menus. iStat Menus is by far the best option for everything temperature and hardware related, however it costs $16 after your 14 day free trial. Before i purchased it, i wanted to compare its results with other various free programs to see what the sensors reported back to see if it was worth my $16. SMC fan Control and iStat Pro (Widget) were the other 2 programs I used during this test. SMC Fan Control and the CPU temps from iStat Menus matched up spot on which was a good sight to see, although iStat Menus repots data faster. iStat Pro (Widget) was mainly used for comparing GPU and GPU Diode temps to see if it was also match up with iStat Menus and those numbers were spot on as well. So in short, all of the numbers I will be giving you are fairly accurate with respect to 3 different sources reporting on all sorts of different internal sensors.

    Here are my specs:

    Retina MacBook Pro

    2.7 Quad Core Intel i7
    16GB DDR3L RAM
    512GB SSD (SanDisk)

    Here are the temps at Idle.

    CPU 40-45 Celsius
    GPU 34-38 Celsius
    Fans 2100 RPM

    Here are the temps at Stress.

    CPU 80-90 Celsius
    GPU 70-75 Celsius
    Fans 4000-4700 RPM

    These temperatures are obviously subject to change but these temps are more than fine for your computer. For my idle numbers, all i had running was just a Safari browser and typing this post right here. For my stress numbers, I was comparing playing World of Warcraft at full resolution,(2880x1800), while completing at 25 man Raid, running Final Cut Pro X in the background along with 2 youtube videos and iTunes running. That is more than enough stress for this machine for a test and the macbook pro just churned it out no problem. It really is a beast of a machine.

    Good Luck and I hope my analysis helps!
  7. lagisibuk macrumors 6502

    Jun 25, 2013
    Always Somewhere
    I have retina 15
    When idle :
    GPU 32
    CPU 31
    Idle 99 percent

    Retina 15 i7 with 8gb ram and 256 ssd
  8. koyoot thread starter macrumors 601


    Jun 5, 2012
    TY very much all. That was what i needed. Im guessing that there will be not much change in temperatures between the basic and high - end model.

    I guess there is only question about money... :p
  9. BuCkDoG macrumors 6502

    Jun 13, 2013
    Completely agree 100%. Go for the high end model, its well worth it! :)
  10. angelus01, Jul 13, 2013
    Last edited: Jul 13, 2013

    angelus01 macrumors newbie

    Feb 25, 2013
    ----------------------------Idle ----------------------------------------------------- Stress----------------

    ----------------------------------------Is my 15 rmbp temperature normal ???

    Attached Files:

  11. GGJstudios macrumors Westmere


    May 16, 2008
    Quite normal. Read the 2nd post.

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