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  1. #1
    "About this Mac" - incorrect info
    Curiouser & Curiouser

    Recently bought a 2nd hand MacBook Pro. Looked good & with no problems.

    "About this Mac" showed
    Model Name: MacBook Pro
    Model Identifier: MacBookPro6,2
    Processor Name: Intel Core i7
    Processor Speed: 2.66 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache (per core): 256 KB
    L3 Cache: 4 MB
    Memory: 6 GB
    Processor Interconnect Speed: 4.8 GT/s
    Boot ROM Version: MBP61.005D.B00
    SMC Version (system): 1.58f17
    Serial Number (system): W80273RQAGW
    Hardware UUID: 21476C6E-6E40-5585-93A1-A14F80F7EEC0
    Sudden Motion Sensor:
    State: Enabled

    Recently installed Temperature Monitor to look at core temperatures as I was running some batch processes 24/7 in the background.

    Looking at the system info in this app. I get something quite different which is shown in the attachment "Temp Mon Sys Info.png"
    ie 2 processors & 4 cores.

    Sure enough, I could download 4 background tasks - one for each core shown in the Temperature Monitor info.

    IE "About this Mac" is not showing the correct inormation about the installed processors. Also different info about the processor type.

    Strange, to say the least.
    Attached Images Attached Images

  2. #2
    "About this Mac" - incorrect info
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
    Posts
    57,059
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, Mojave
    Nothing different. Just a different way of displaying the same information. Note that the i7 CPU has 2 cores.

    Also information about your MBP from here.

  3. #3
    Thanks for replying but it looks different to me.

    "About your Mac: :-
    Processor Name: Intel Core i7
    Processor Speed: 2.66 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2

    System Info from Temperature Monitor

    Processor Name: i486
    Processor Speed: 2.7 GHz
    Number Of Processors: 2
    Total Number Of Cores: 4

    Despite "About my Mac" showing only 2 cores, I really do have 4 jobs running on 4 cores.

  4. #4
    "About this Mac" - incorrect info
    Willabong's Avatar
    Member Since
    Mar 08, 2015
    Posts
    26
    Your Mac's Specs
    iMac 2008 4 gig ram - Macbook Pro 2012 16 gig ram - iPad Air series 5 2017.
    Have you actually got 2 cores and 2 mirrored cores? In effect this would be a 4 core machine! A laptop running Windows often has 2 logical cores and 2 mirrored cores giving you a total of 4 usable cores, and would be sold as a 4 core laptop!

  5. #5
    "About this Mac" - incorrect info
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,629
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    The Apple System info is 100% right. You only have 2 CPU cores but your CPU also has hyperthreading which has also 2 virtual cores. Some software will use all 4 but technically it's a Dual Core CPU.

    my 2010 iMac with an i7 has 4 actuall CPU cores and 4 hyperthreading cores. When I do intensive work with some apps I get 800% CPU usage. Not all software will use Intels hyperthreading.

    For more into on the subject google hyperthreading.


    The MacBook Pro "Core i7" 2.66 15-Inch (Mid-2010) is powered by a 32 nm, dual-core 2.66 GHz Intel "Core i7" I7-620M (Arrandale) processor, with dedicated 256k level 2 cache for each core and a 4 MB shared level 3 cache. This system also supports "Turbo Boost" -- which "automatically boosts the processor speed based on workload" up to 3.33 GHz for this model -- and "Hyper Threading" -- which allows the system to recognize four "virtual cores" or "threads."
    Last edited by dtravis7; 01-07-2019 at 03:52 AM.

  6. #6
    "About this Mac" - incorrect info
    Willabong's Avatar
    Member Since
    Mar 08, 2015
    Posts
    26
    Your Mac's Specs
    iMac 2008 4 gig ram - Macbook Pro 2012 16 gig ram - iPad Air series 5 2017.
    Again, it's down to the way Apple reports it! You actually for all intents and purposes have a 4 core system with 2 logical cores and 2 mirrored (Hyperthreaded) cores.....Windows reports this correctly as 4 usable cores, Apple is also technically correct in reporting only 2 logical (real) cores!

  7. #7
    Thanks for all your answers, very informative. Apologies for the delay in reosponding.
    I still have a problem with my differing info..
    I'm not running Windows, just OSX.
    The system info shows just 1 processor & 2 cores - but - the monitor system shows 2 processors and 4 logical cores -- I can't find any evidence of hyperthreading.
    The information picked up by the monitor system must be somewhere on the Mac and distinctly shows 2 processors - and 4 logical cores.

  8. #8
    Forgot to attach the two differing sets of info..
    Attached Images Attached Images

  9. #9
    "About this Mac" - incorrect info
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    5,654
    Your Mac's Specs
    L2014 Mac mini macOS Mojave, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  10. #10
    "About this Mac" - incorrect info
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    29,629
    Your Mac's Specs
    iMac late 2012 21.5 i5 10:14. iMac 2010 27"QuadI7 OS10.13, MBPLate2011, iPad Pro10.5", iPhone5s,
    Bobs URL is 100% correct. That MBP has a Single Intel i7 CPU that is Dual Core. It also has Hyper Threading but those other cores the app is reporting are NOT cores but Virtual Hyper Threading Threads. Threads are not cores. I hope that helps.

    That monitor software is wrong technically. Intel Flat out states that 2.66Ghz CPU in your machine is a Dual Core CPU.

  11. #11
    Thanks for your explanations. I guess it must be the monitor misusing the word "processsor".
    Thanks again

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