does a RD Ram radeon vid card exist? that has dvi/vga outs and can run dual monitors

[Mugen13]

From looking at a bunch of different cards, its seems that all the video cards are made for DDR ram instead of RD ram.

I'm looking for a vid card that supports RD ram and has dvi/vga outs. I just got the dell 1800fp monitor and i want to run a dual monitor set up, using the dvi port for the 1800fp and the vga port for a crt.

does anyone know a of vid card that can do what i want?

 

[BoberFett]

DVI/VGA cards are easy to find. Why do you care what kind of RAM it has?

 

[Mugen13]

Originally posted by: BoberFett
DVI/VGA cards are easy to find. Why do you care what kind of RAM it has?

I have a computer w/ RD ram, so i can use a card w/ DDR ram? (like the ATI RADEON 9500 PRO; Memory:128MB DDR)
Im just not sure if you can mismatch ram types, thats why i'm confused. I know there are a lot of DVI/VGA cards.

 

[bgeh]

you can use a DDR-memory video card on a RDRAM based system.

 

[BoberFett]

The system RAM and video RAM are unrelated. Unless there's a known compatibility problem you can use just about any video card with just about any motherboard.

 

[Jeff7]

Originally posted by: BoberFett
The system RAM and video RAM are unrelated. Unless there's a known compatibility problem you can use just about any video card with just about any motherboard.

That, and I haven't ever seen a videocard that uses RDRAM. It's all SDRAM, DDR RAM, and now DDR II.

 

[Confused]

There are no RD-RAM graphics cards, due (mainly) to the higher latency that RD has over DDR RAM. Low latency is very important to a graphics card, and with the <4ms latency with DDR and DDR II, moving to RD RAM would be a step backwards.

Another reason (I believe) is not being able to licence the RD-RAM, and the higher costs that the RD has anyway, plus the costs of licencing also.


Confused

 

[alpineranger]

I have an old Creative graphics card (model Ma-302) that uses rambus memory. It was given to me by someone who used to work at Rambus. I'm pretty sure there are other graphics cards out there that did (in the past) use rambus memory, but I can't think of any current cards that do.

Regarding the latency issue, I think this really isn't a problem with video card memory, since the graphics chip tends to do large block transfers from contiguous memory space. With those sort of memory access patterns, the initial latency is easy to hide, and doesn't present too much of a problem. In my not at all expert opinion, I think it was the current draw, heat and pcb requirement (to insure signal integrity) issues of rambus memory that stopped it from finding a more prominent place in today's graphics cards.