Crossfire Question

[spacehog]

I have this card:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814121290R

Can I crossfire with any brand 4870 card? Even if things like the core clock speed and memory clock speed are different?

The Example in the sticky only mentions SLI is it same for crossfire?

 

[Irish]

Sli is to nvidia what Crossfire is to ATI. They are sort of the same in that they use 2 cards to increase performance to X.

Now as for the cards. Crossfire requires 2 of the same chipsets. example 4870 1 gb with a 4870 1gb. Now with that said. You can allow for certain shortfalls for one card and the first card will change its internal settings to match it.. example 4870 1 gb with a 4870 512mb. The 1 gb card will drop its use to 512mb. If the clock speeds are different generally the higher faster card will drop its clock speeds to match the slower card.

There are some rare examples that the slower card will OC itself to match the faster card, but like I said rare.

So for your answer, YES any brand of 4870 card will work, just be aware of the underclocking factor.


GL
Irish

 

[Amg]

yes crossfire don't care put simpliey, but be warned it will unclock the fastest card if the specs are different, I think the dark knight is overclocked, so if you put that with a stock, than you will find it will back off the clocks a bit unless you overclock your stock

SLI does care so you have to be VERY carefull with SLI

 

[Mousemonkey]

SLI does care so you have to be VERY carefull with SLI

It doesn't when I've Sli'd two differently clocked cards.

 

[Amg]

same chipset cards through?

 

[Mousemonkey]

same chipset cards through?

It has never been possible to Sli two different GPU's, one only has to read the Nvidia FAQ to understand that thus it's not about being careful, just educated.

 

[Amg]

It has never been possible to Sli two different GPU's, one only has to read the Nvidia FAQ to understand that thus it's not about being careful, just educated.

the way I understood is that crossifre don't care what you stick together with in reason, but SLI does but will work as long as its the same chipset card, I have bene corrected by yourself on the specs of the card through

 

[Mousemonkey]

teh way I understood is that crossifre don't care what you stick together with in reason and SLI did but will work as long as its the same chipset card

Surely you mean GPU?

 

[Amg]

yes say like the 8800 and the 9800 are the G92 as is the GTS sorry lost my wording

 

[Mousemonkey]

yes say like the 8800 and the 9800 are the G92 as is the GTS sorry lost my wording

The BIOS's are different, if you were to reflash the BIOS of a 9800 (65nm) with that of an 8800GTS then it would most likely SLI as they are essentially the same card.