Crossfire

[gammaray]

Hello,

Can i Crossfire my "old" MSI 4890 video card with a 4850 or 5850 video card ?

I got a MSI GD-70 790FX board.

Thx!

 

[betasub]

http://sites.amd.com/us/game/technology/Pages/crossfirex.aspx

The chart shows that your motherboard is compatible (provided it has available PCIe slots) for Crossfire. Your 4890 can be paired with any other 4800 series card. If you know anything about AFR, having the two cards running at the same clockspeed is advantageous.

 

[gammaray]

ok so it will work with any 4800 serie cards but what about the 5800 serie ?

 

[busydude]

 

[GotNoRice]

but what about the 5800 serie ?

No.

Your choices are:

4890 1gb: Probably the best choice since this would be identical to your current card.
4870 1gb: Fairly similar to the 4890 and would work well in crossfire with a 4890.
4870x2: This would work great with a 4890 and give you triple-crossfire.
4870 512mb: This would work in crossfire but it would essentially limit it to as if both of your cards only had 512mb each.
4850/4830 1gb: This would work but would essentially slow each card down to the speed of a 4850, which would still be faster combined than a single 4890, but not as large of an increase as you might expect.
4850/4830 512mb: Same limitation in that it will slow down to the speed of a 4850/4830 but your ram will also be limited to 512 on each card.

I ran a 4870x2 with a single 4850 512mb for a short while just for testing purposes and it worked fine. Though I agree that the more similar a card you can find the better. I'd look for another 4890, a 4870 1gb, or a 4870x2.

 

[betasub]

ok so it will work with any 4800 serie cards but what about the 5800 serie ?

Sigh. Did you even make the effort to look at the chart in my link?

Now busydude has posted the actual image of the chart, so it takes even less effort to look at it...

 

[gammaray]

No.

Your choices are:

4890 1gb: Probably the best choice since this would be identical to your current card.
...

Thx.

I didn't find any 4890 cards like the one i own to buy.
This sucks tho that 5800 serie won't work. Has it been tested?

betasub:
( and yes i saw your graphic but then amd post things that are meant to work together, it doesn't mean other combinations could not work, i'm pretty sure.)