MacBook Pro: 2 2ghz cores, or 2 1ghz cores?

Discussion in 'Mac Pro' started by screensaver400, Jun 29, 2006.

  1. screensaver400 macrumors 6502a

    Joined:
    Jan 28, 2005
    #1
    I've been curious about this. Does the Intel Core Duo chip have two 1ghz cores, or two 2ghz cores in a "2GHz chip"? The reason I ask is that, all other things equal, two 1ghz cores would be slower than one 2ghz core. I am curious as to how Intel was marketing their chips.
     
  2. iGary Guest

    iGary

    Joined:
    May 26, 2004
    Location:
    Randy's House
    #2
    You answered your own question. Each core runs at 2.0GHz.
     
  3. Laser47 macrumors 6502a

    Laser47

    Joined:
    Jan 8, 2004
    Location:
    Maryland
    #3
    2 1ghz processors do not equal a 2 ghz chip, if so then the quad would be 10 ghz!
     
  4. DMPDX macrumors 6502

    Joined:
    Dec 4, 2005
    #4
    That's basically what it is though. 4 cores running at 2.5GHz each. There has been LOTS of discussiona bout the quad and there are realistic and technical answers, but let's not hijack or go off topic on this thread. k?
    -dsm
     
  5. Mord macrumors G4

    Mord

    Joined:
    Aug 24, 2003
    Location:
    UK
    #5
    you cant split a thread over cores, a single 10GHz cpu is always faster than a quad 2.5GHz core design when using the same architecture and fsb.
     
  6. Fredou51 macrumors regular

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    May 23, 2006
    Location:
    Kingston, Ontario, Canada
    #6
    That's pretty cool. I didn't know that. So a quad has four core running at 2.5 Ghz each and a Intel Core Duo 2 Ghz has two core running at 2 Ghz each? So how come Apple doesn't call their computer "Dual Core 4 Ghz" or something? I think it would be better marketing.
     
  7. screensaver400 thread starter macrumors 6502a

    Joined:
    Jan 28, 2005
    #7
    It would be better marketing, but would also be somewhat untrue.

    As has been said before, a 10ghz single G5 would be faster than a Quad 2.5ghz.
     
  8. Fredou51 macrumors regular

    Joined:
    May 23, 2006
    Location:
    Kingston, Ontario, Canada
    #8
    Moreover would the Mac Mini Core Solo has one core at 1.5Ghz and the Core Duo has two a 1.67Ghz? That's a huge difference!!
     
  9. gnasher729 macrumors P6

    gnasher729

    Joined:
    Nov 25, 2005
    #9
    It wouldn't be better marketing at all, because everyone would think that they are either stupid or lying.

    2 GHz is a frequency. Whether you have 1 core, or 2, or 200, the frequency is the same. Ask yourself: If one cup of tea has a temperature of 80 degrees Celsius, what is the temperature of two cups of tea? Do you think it is 160 degrees? No, it is still 80 degrees. If your car can go 120 miles per hour, could you go 240 miles per hour if you had two cars? No, you can't. Same thing with processor clock speed: It stays the same.

    Now you could ask how many operations per second a computer can perform. A single core in the Core Duo chip can perform up to three operations per clock, that is up to 6 billion per second at 2 GHz, and the whole chip can do twice that, that is up to 12 billion per second. So the Core Duo can do more work per second than a single processor per chip, but clock frequency is the same.
     

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