What is the most powerful graphics adapter that can be used in a PowerMac G4 MDD?

LOLZpersonok

macrumors 6502a
Original poster
Aug 10, 2012
711
14
Calgary, Canada
I know I've been posting a lot of threads recently, but I think it's a good idea to have separate topics in different threads, because other people would have a better time finding these threads in case they need to use the thread themselves.

I am aware that the PowerMac G4 MDD usually comes with a 64MB or 128MB graphics adapter in it.

My question is, what is the most Video Memory the machine can handle? In case my main computer does die, which it is, I was figuring I might be able to take my main computer's graphics card and put it in my PowerMac G4. That graphics card has 1.5GB of Video Memory. It is an ATI graphics card, and I'm pretty sure the PowerMac uses ATI graphics.
 

Intell

macrumors P6
Jan 24, 2010
18,883
372
Inside
Your PowerMac has a AGP 4x slot. No AGP card has 1.5GB of video ram. G4 PowerMacs can only see 256MB of video ram. Even if the card has 512MB. This is a limitation of all G4 Macs. The fastest card would be a flashed PC card. Some of the faster ones include the ATI X800. These sell for about $100 on eBay. There are two flashed X800 cards. The FireGL3 and the standard PC one. The FireGL3 has two DVI-I ports that can be used with a VGA adapter to output VGA. The standard PC has one VGA and one DVI-I port. The DVI-I port on the standard PC one does not work. Thus, if you want a flashed ATI X800 with working DVI-I ports, get a flashed FireGL3.

There are of course other cards, maybe some more powerful than the X800. Before going out and buying one, see what others post. Video cards are not my greatest strength.
 

LOLZpersonok

macrumors 6502a
Original poster
Aug 10, 2012
711
14
Calgary, Canada
Your PowerMac has a AGP 4x slot. No AGP card has 1.5GB of video ram. G4 PowerMacs can only see 256MB of video ram. Even if the card has 512MB. This is a limitation of all G4 Macs. The fastest card would be a flashed PC card. Some of the faster ones include the ATI X800. These sell for about $100 on eBay. There are two flashed X800 cards. The FireGL3 and the standard PC one. The FireGL3 has two DVI-I ports that can be used with a VGA adapter to output VGA. The standard PC has one VGA and one DVI-I port. The DVI-I port on the standard PC one does not work. Thus, if you want a flashed ATI X800 with working DVI-I ports, get a flashed FireGL3.

There are of course other cards, maybe some more powerful than the X800. Before going out and buying one, see what others post. Video cards are not my greatest strength.
Cool, thanks. You didn't have to be good at video cards, I got the information I needed. Thanks!

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Use the search page to look up other topics on this. It has already been discussed numerous times.
I will consider this next time (If I remember), thanks.
 

Jethryn Freyman

macrumors 68020
Aug 9, 2007
2,333
2
Australia
Your PowerMac has a AGP 4x slot. No AGP card has 1.5GB of video ram. G4 PowerMacs can only see 256MB of video ram. Even if the card has 512MB. This is a limitation of all G4 Macs. The fastest card would be a flashed PC card. Some of the faster ones include the ATI X800. These sell for about $100 on eBay. There are two flashed X800 cards. The FireGL3 and the standard PC one. The FireGL3 has two DVI-I ports that can be used with a VGA adapter to output VGA. The standard PC has one VGA and one DVI-I port. The DVI-I port on the standard PC one does not work. Thus, if you want a flashed ATI X800 with working DVI-I ports, get a flashed FireGL3.

There are of course other cards, maybe some more powerful than the X800. Before going out and buying one, see what others post. Video cards are not my greatest strength.
I've got a PC FireGL X3 flashed with Radeon X800 ROM, it's an awesome card. Two displays connected with DVI at 2048x1152 resolution, butter smooth. Overclocks well.

Check out my thread here:
http://att.macrumors.com/showthread.php?t=1348675