Anybody upgraded a slower Power Mac with a high-end graphics card?

Discussion in 'PowerPC Macs' started by Jethryn Freyman, Jan 10, 2012.

  1. Jethryn Freyman macrumors 68020

    Jethryn Freyman

    Joined:
    Aug 9, 2007
    Location:
    Australia
    #1
    So, I've got a dual 1.8GHz G5 with the Radeon 9600 XT, and I'm considering upgrading to a Geforce 6800 GT for $150. Thing is, I really don't have a need for this per se, it's just for fun. If I want to play games, I've got a PC with a Radeon 6770 in it, but it would be nice to game a bit better on this Mac since it's less of a hassle :)

    Not that it'd make too much of a difference, because most games seem to be limited by the 1.8GHz CPU, most PowerPC games aren't even multithreaded. So that's the problem, the CPU is a big bottleneck, and any benchmarks of the different GPUs out there use the high end (dual 2.3GHz and faster) models (to show off the GPU difference and not be bottlenecked by the CPU.)

    Has anybody upgraded a slower Mac like mine to a fairly high end graphics card, and how that go for games? (like Quake 4, Halo, even UT2004)
     
  2. Subish macrumors member

    Joined:
    Dec 2, 2011
    #2
    Never bench-marked my G5 but I will tonight after work for ya.

    I'm running a G5(early 05) 2.3DP , 8gigs of G-Skill Ram (2.5cl), 6800 ultra.
    I usually play all my old blizzard games on it and never have a problem.
     
  3. Jethryn Freyman thread starter macrumors 68020

    Jethryn Freyman

    Joined:
    Aug 9, 2007
    Location:
    Australia
    #3
    Cool - not sure it'll help a great deal though since your CPU is much faster than mine so won't be as much of a bottleneck for performance
     
  4. Subish macrumors member

    Joined:
    Dec 2, 2011
    #4
    When I play games I never really feel bottleneck by the CPU but the video card.
    On the PC side I know the newer video cards do see better scores with Intel vs AMD. The different was minor by only a few fps.

    Even is the CPU is holding the video card back your still going to see an improvement in your games with the better card.

    I think you should be fine since you have a Dual 1.8 and not a single. The single CPU where the ones that felt gimped.
     
  5. California macrumors 68040

    California

    Joined:
    Aug 21, 2004
    #5
    That 6800 is a great card and as I've owned both a 2.7ghz with that card and a 1.8 single without that card I'd be curious to see the speed increase. It is indeed a "gimped' machine' even with maxed 8 gigs of ram.
     
  6. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #6
    Get this one and flash it to X800XT. It's more powerful than 6800 Ultra and it costs about 3x less. It's possible to flash it on a Mac using Graphiccelerator.
    I'm not a gamer but I've compared 6800 Ultra (Mac one) with FGL X3 (flashed to X800) on 2.0 Dual in Cinebench and Fire was about 20% faster in OpenGL.
     
  7. zen.state macrumors 68020

    zen.state

    Joined:
    Mar 13, 2005
    #7
    IMO the ultimate card for a G5 tower is any GeForce 7800 revision or ATI x800.
     
  8. adcx64 macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Philadelphia
    #8
    Upgrading my MDD to a Radeon 9800 from a 9000 pro. I thought of the same thing about the CPU being a bottleneck, so I'm curious to see what other responses you get here.
     
  9. Jethryn Freyman thread starter macrumors 68020

    Jethryn Freyman

    Joined:
    Aug 9, 2007
    Location:
    Australia
    #9
    Interesting... I had a bit of a Google and it looks possible, when shipping is factored in though it ends up about $65, definitely cheaper, but I really feel that the difference will be negligible when you take the CPU factor into account and I like the idea of the 6800 because it's very much going to be plug and play. If I did have enough extra cash to get that card and then still be willing to get a 6800 afterwards if I failed, then I'd certainly go for it and see what I could do...

    Yeah I remember the 7800 GS being benchmarked as the very best for the AGP G5's, but I'd bet they be going in the $250+ price range and again if I were comparing a 6800 vs a 7800 vs X850XT on my system, there would be very little difference because of the CPU (and to get to a high enough resolution to show any different would probably mean a framerate of less than 10 anyway.) I'm surprised I just can't find any benchmarks of a slower G5 like mine with a high end graphics card though, I would've thought that somewhere on the internets there'd be some...

    When I get this done I'll post benchmarks :)

    It'll also mean I can swap the 9600 into my old Digital Audio G4 to replace it's ancient Rage 128. Awesome!
     
  10. ThunderSnake macrumors 6502

    Joined:
    Jul 23, 2010
    #10
    If you go with 666sheep's advice, use this rom. The X3 is an easy teardown too. Removing three screws on the rear of the card will free the heatsink assembly. Clean the GPU and apply some fresh thermal compound just like you would if you were purchasing a used G4 that you didn't know the history of. Normally, when I'm going to this much trouble, I would also install a new fan (just to be done with it for a few years aside from the occasional blast of compressed air).
     
  11. vohdoun, Jan 10, 2012
    Last edited: Jan 10, 2012

    vohdoun macrumors 65816

    vohdoun

    Joined:
    Jan 23, 2006
    Location:
    Far away from Earth.
    #11
    Even a 7800GS+? it's a G71 core that I have thats sadly not a reference card with 512MB.
    http://www.s155158671.websitehome.co.uk/gainwardbliss780.html


    Oh neat someone has done it.

    :/

    Seems such a waste to flash it to have only 256MB as the same as my 6800 Ultra.
     
  12. Subish macrumors member

    Joined:
    Dec 2, 2011
    #12
    I did a Xbench if you like any other one please let me know.

     

Share This Page