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7970 / 7950 Crossfire

Last response: in Graphics & Displays
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June 11, 2013 8:05:23 AM

Hey guys,
I bought a new gaming setup a couple months back, 7970, 120Hz monitor, the usual. The monitor I have only has a dual link DVI port to run at 120Hz and due to my lack of thorough research I bought the MSI 7970 Lightning BE which comes with 4 mini DP and 2 single link DVI ports. The only way to achieve 120Hz with the 7970 would be to buy a ~$120 adapter (Located in Australia).

Now to my question. If I was to crossfire my 7970 with a 7950 (~$210 minus the adapter cost) would the 7970 still work at full effect, considering I would need to plug the 7950 into the PCIe 3.0 slot as the DVI from the monitor would need to plug into its DL DVI port?

I know hybrid crossfire'd cards have been able to run at their own specs for a while now, I am just uncertain as the more powerful card, 7970, will not be in the PCIe 3 slot and not connected to the monitor.

Cheers Luke.

More about : 7970 7950 crossfire

June 11, 2013 8:15:00 AM

I was planning to crossfire, hence the 850w PSU I bought as well :)  If I need to buy an adapter for $120 I may as well crossfire now if it saves me the money. That is if the configuration I want is worth it, otherwise selling it might be better.
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a b À AMD
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June 11, 2013 8:18:43 AM

If you CrossFireX, the HD 7970 will have to down clocked to match the HD 7950 which will also result in a loss of some features from the HD 7970 card.
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June 11, 2013 8:28:50 AM

The best option may just be to sell it then and buy a new card then to avoid the hassle. Then later on crossfire the matching cards. Any idea how much a used 7970 Lightning BE would be worth?
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