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Dual-Core Processors

Discussion in 'Computers & Modding' started by ICE-X, Jul 7, 2009.

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  1. ICE-X

    ICE-X Well-Known Member

    If I have have a dual-core running at 3.1 Ghz does that mean that each core runs at 3.1Ghz or both cores combined run at 3.1Ghz?
     
    ICE-X, Jul 7, 2009
    #1
  2. Loonylion

    Loonylion Administrator Staff Member

    most likely it means each core is 3.1Ghz.
     
    Loonylion, Jul 7, 2009
    #2
  3. jc_106

    jc_106 Well-Known Member

    most likely?
     
    jc_106, Jul 8, 2009
    #3
  4. Loonylion

    Loonylion Administrator Staff Member

    if its what windows reports as the speed then its per core. If its in the processor name, eg AMD Athlon X2 3100+ then it could be either, but in the given example its the combined speed.
     
    Loonylion, Jul 8, 2009
    #4
  5. jc_106

    jc_106 Well-Known Member

    meaning that in amd phenom x4 9550, the 9550 is the combined speed? because that's my processor, and it runs at 2.2GHz per core, meaning 8.8GHz total.
     
    jc_106, Jul 9, 2009
    #5
  6. Loonylion

    Loonylion Administrator Staff Member

    they changed the indicator again then, its back to what it was with the Athlon 64. (effective speed of an equivalent rival processor).
     
    Loonylion, Jul 9, 2009
    #6
  7. mds64

    mds64 Well-Known Member

    If so, that would make my laptop 8 times more powerful than a ps2-yet the ps2 emu fails to play as well...


    My guess-it's combined total-just that 2 cores run as one, less stress maybe...


    or they run independantly-so you can't have all that power all at once-alternating prehaps.


    Just a therory
     
    mds64, Jul 30, 2009
    #7
  8. Loonylion

    Loonylion Administrator Staff Member

    depends on the software.

    Your computer is also running windows and whatever other background processes you have, it's translating PS2 instructions to PC instructions at considerably less than 100% efficiency (limited by the emulator), and the CPU is also having to translate PS2 graphics and sound instructions because your PC hardware won't understand them in their native form. Emulators are always extremely CPU heavy, and in general they aren't multiprocessor aware, so it only uses one core.
     
    Loonylion, Jul 30, 2009
    #8
  9. mds64

    mds64 Well-Known Member

    What does sse 4 mean?

    I thought that would have something to do with multi-core processors...

    It's in the dos prompt of the pcsx2-showing me the details of what exactly is going on-some features of the program can't be used without it..

    I heard something on the emulator's site fourms.
     
    mds64, Jul 30, 2009
    #9
  10. Loonylion

    Loonylion Administrator Staff Member

    sse4 is an intel instruction set used by modern processors.
     
    Loonylion, Jul 30, 2009
    #10
  11. mds64

    mds64 Well-Known Member

    My latptop seems to do all but that one...hence why ps2 emulation is doggy at best..
     
    mds64, Jul 30, 2009
    #11
  12. nomercy

    nomercy Well-Known Member

    No, ps2 emulation isn't good because emulation isn't good enough yet. Also, a good video card is a pre as well, as you are still running an advanced 3D program.

    Also, 2.2 Ghz for four cores does not result in a 8.8 Ghz clock. They're all at 2.2 Ghz, only now you have four of them.
     
    nomercy, Aug 2, 2009
    #12
  13. Loonylion

    Loonylion Administrator Staff Member

    hence 8.8Ghz effective speed in an SMP aware program.
     
    Loonylion, Aug 2, 2009
    #13
  14. damanali

    damanali Well-Known Member

    mostly, how does that work? for example i own a quad core 3.0 Ghz. then i play a psx emulator, then i'm scanning my computer using avg, while listening to some mp3 music.

    will that mean, my comp will not slow down cause 1 core for emulator, 1 core for scan and 1 core for music and 1 free to do my bidding?

    thats why my comp only has a dual core cause they say my comp will heat up faster if i use many programs and with many core... ah..why didnt i took up computer advance?
     
    damanali, Aug 3, 2009
    #14
  15. Loonylion

    Loonylion Administrator Staff Member

    On a basic level, yes.
     
    Loonylion, Aug 3, 2009
    #15
  16. tehuber1337

    tehuber1337 Well-Known Member

    Even if those processes are running on different cores, the data bus and registers on the chip are still the same size. Having a multicore CPU is not the same as having multiple CPUs.
     
    tehuber1337, Aug 3, 2009
    #16
  17. damanali

    damanali Well-Known Member

    but the more cores, the more heat produced inside the computer case, right? so i was right to put like 1 fan for the graphics card, 1 for the hardrive, and one for the processor... i think i put also 1 for the ram, oh well, i dont have problem with heat anyways, the comp is in a airconditioned room.
     
    damanali, Aug 3, 2009
    #17
  18. Loonylion

    Loonylion Administrator Staff Member

    The data bus is wider for that reason, and each core has its own cache and registers (on my processors anyway) I have both multicore and multiple CPUs.
     
    Loonylion, Aug 3, 2009
    #18
  19. damanali

    damanali Well-Known Member

    can you put more than 1 cpu, or processor in 1 computer case? and it runs side by side? like a had 2 phenom quad core in 1 computer case?
     
    damanali, Aug 3, 2009
    #19
  20. tehuber1337

    tehuber1337 Well-Known Member

    Usually, motherboards only support one CPU at a time.
     
    tehuber1337, Aug 3, 2009
    #20
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