Speed difference

Discussion in 'Buying Tips, Advice and Discussion (archive)' started by iArtificialLife, Feb 21, 2005.

  1. iArtificialLife macrumors member

    Jan 1, 2005
    my heart is in tokyo,japan
    I was wondering what would the speed difference be between a pentium 4 2.6 ghrz with hyper threading and a G5 pwermac single 1.8 ghrz?
  2. Elbeano macrumors regular

    Apr 21, 2004
  3. Southbridge macrumors regular


    Feb 12, 2005
    Astoria, NY
    the P4 is probably going to be faster because it supports 800 Mhz FSB vs. the 600 FSB of the G5... that is if your PC Mobo also supports 800 Mhz FSB... also the G5 cache is 512k vs. the 1MB cache of the P4.

    Honestly you need to know more information about your Mobo to really judge...
  4. Mechcozmo macrumors 603


    Jul 17, 2004
    G5 would win, due to the RISC chip.
    But it also depends on the application and how well they are designed to work with each system.
  5. Gregory macrumors member

    Oct 1, 2001
    Detroit, MI
    A iMac G5 1.8 GHZ is the Same speed as a P4 2.4. If the program supports hyper threading then the P4 will gain about 10% extra speed. Same with the G5 if the program supports Velocity Engine about a 10-15% extra speed. All in all the P4 2.6 maybe slightly faster. Maybe 3-5% ,which is not much . . . Speed is not every thing. Just because the P4 has a faster Bus, doesn't make it any faster. Apple uses a different approach to FSB Speed.
  6. freiheit macrumors 6502a

    Jul 20, 2004
    Depends on your usage

    It all depends on what it is you're doing with your P4 and your G5. Text editing won't show any difference. :) Running apps that are "ported" to MacOS will probably show the P4 is faster (very likely those apps were optimized under Windows and are simply runnable under OSX). On the other hand, apps that are optimized for OSX and the G5 may run faster on the G5.

    There's also the point that the video card in the Mac in many ways acts like another CPU -- where Windows, Linux and other more traditional systems do almost all of their graphics functions in software on the host CPU, MacOS X does a lot of its graphics processing in the GPU (video card). Having a Radeon 9800 or GeForce 6800 in the Mac will make the whole system seem more responsive in every application (not just 3D games). If you put a GeForce FX 5200 into the G5, it probably won't be as snappy.

    Personally, I enjoy running iMovie, iDVD and Garage Band on my Mac (dual G4). These run infinitely faster on a G5 than on a P4 becasue they are only available for MacOS X. So yes, it all depends on what you will do with the system that determines whether it's faster. If you do mostly Photoshop or Flash, chances are you'll see good performance on either system because those apps are made for and optimized for both platforms.
  7. daveL macrumors 68020


    Jun 18, 2003
    Who cares? You can't run OS X on a P4. If you're going to run x86, make it an AMD Athlon64; don't waste your money on a P4, it's just power wasting junk.

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