Radeon HD 7790 and R7 260x Crossfire?

VoteableLlama · Mar 6, 2014

I'm wondering if it's possible to Crossfire a Radeon HD 7790 and an R7 260x as the title suggests. I know they are very similar, so I would assume they would be able to Crossfire. Obviously I would only be able to use the 1GB or VRAM, but still, I think it would be convenient. There have been a couple other posts about this, but they haven't thoroughly explained it. If anyone is willing to answer, I'm willing to listen

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s4in7 · Mar 6, 2014

Yes, they are the same GPU and will Crossfire just fine

Check out the performance review of such a configuration here http://www.legitreviews.com/amd-radeon-7000-radeon-r200-series-mixed-crossfire-testing_126124

VoteableLlama · Mar 6, 2014

I'm wondering this because I cannot find a 7790 on a commonly used site that has it in stock.

AshyCFC · Mar 6, 2014

short answer:

It works.

Robert Pankiw · Mar 6, 2014

Yes, you can. Link

s4in7 · Mar 6, 2014

VoteableLlama :

Get a 260X then, the Crossfire will work perfectly!

VoteableLlama · Mar 6, 2014

Would I be able to use the same drivers, or would I have to get the R7 ones? (And thanks for the answers

)

VoteableLlama · Mar 6, 2014

Great performance boost between the single cards and Crossfire, wow!

s4in7 · Mar 6, 2014

Use the same driver, Catalyst 14.2 Beta http://support.amd.com/en-us/kb-articles/Pages/latest-catalyst-windows-beta.aspx

What you'll need to do is uninstall your current 7790 with Catalyst Control Center Uninstaller from Programs & Features, run Display Driver Uninstaller to wipe away all traces, shut down, install your new 260X as the primary (first) graphics card then the 7790 as the linked adapter (second card), hook up the Crossfire interconnect, boot up and install Catalyst 14.2!

VoteableLlama · Mar 15, 2014

One more question (I know it's a little late): do all of the r7 260x cards have a CrossFire bridge connector (don't know the official term)?

AshyCFC · Mar 15, 2014

I believe they come with one, just to check what brand are you buying?

Rutzz Lacerta · Jul 2, 2014

Hello, did you get the 260x and xfired it with the 7790? I wanna do the same but still in doubt if it works.

MestreLion · Jul 24, 2014

VoteableLlama :

Nope. Both 1GB models from XFX (ZNF4 and ZNJF) have no CrossFire connector.

Since the 260X have this new AMD "xDMA" technology of "Crossfire via PCIe bus", some cards may not have the bridge connector.

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Radeon HD 7790 and R7 260x Crossfire?

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