PowerMac g5 1.8 Dual core Max upgrades

Discussion in 'PowerPC Macs' started by daniel.page, Oct 3, 2010.

  1. daniel.page macrumors newbie

    Oct 3, 2010
    i have just bought a PowerMac g5 1.8 Dual core its the model with 8 ram slots, and i want to upgrade the graphics card to the best one possable that the mac can take but i dont know which ones are compatible i know its AGP but other than that i have no idea what im looking for!!!

    Thanks in advance:):)
  2. sysiphus macrumors 6502a


    May 7, 2006
    Nothing personal, but next time try reading half way down the page on the forum for an identical thread ;)

    Copied from my post on the aforementioned thread:

    The short answer is that the highest-performing official cards you can get are the ATI X800/X850 , and the Nvidia Geforce 6800 GT/Ultra.

    The ATI card is theoretically faster, but some people (including me) thought the Nvidia cards had better drivers. The Nvidia cards are huge, and occupy both the AGP slot and the space in front of the adjacent PCI slot. The Nvidia cards also have two dual-link DVI ports, rather than 1 dual-link DVI and one ADC, as on the ATI cards. The ATI cards are more common, as they were available for a while in retail channels, whereas the Nvidia cards were available only very briefly as a separate kit (and as a BTO option). These are the best you can get of the original Apple-compatible cards for your machine (AGP-graphics G5). There were several better official Mac cards for G5s with PCI-Express, these will NOT work in your G5, regardless of whether you have PCI or PCI-X slots. [PCI-X is NOT the same thing as PCI-Express].

    There are also some flashed PC cards available; the general sentiment is that they're pretty good, but the official Apple cards are the only ones guaranteed to work. A stock PC card will not work in a Mac without re-flashing the firmware to a Mac-compatible version. The Nvidia 7800GS flashed to a Mac ROM will be appreciably faster than the 6800 Ultra, or the ATI X850 (the two best official cards), but it's not a killer difference. The single biggest leap in performance is going from a 9800 or below to either the x800/6800 class cards.

    Your second question was if it was worth buying such a card. The primary motivation for a high-end graphics card in an AGP-based G5 would be gaming (as no pro-level Quadro etc cards were ever available for those computers). If you know you want to play games on your G5, then, by all means, go for it--but be aware that if World of Warcraft is your motivation, don't bother. In fact, don't bother with that computer, period; PowerPC support for WoW is ending with the launch of Cataclysm this year.

    Hope this helps; let me know if you have more questions.
  3. VanneDC macrumors 6502a


    Jun 5, 2010
    Dubai, UAE

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