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Hey guys quick question can you run a crossfire config with an r9 270 x with an r9 280 x or does it have to be the exact same card?

Has to be the exact same architecture.

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Has to be the exact same card. 

No, it doesn't. As long as they are in the same family, you can crossfire the cards. In this case, the cards cannot be put in cf since the 280 is Tahiti XTL and the 270 is Curacao. 

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No, it doesn't. As long as they are in the same family, you can crossfire the cards. In this case, the cards cannot be put in cf since the 280 is Tahiti XTL and the 270 is Curacao. 

I changed my post by the way.

|CPU: Intel 5960X|MOBO:Rampage V Extreme|GPU:EVGA 980Ti SC 2 - Way SLI|RAM:G-Skill 32GB|CASE:900D|PSU:CorsairAX1200i|DISPLAY :Dell U2412M X3|SSD Intel 750 400GB, 2X Samsung 850 Pro|

Peripherals : | MOUSE : Logitech G602 | KEYBOARD: K70 RGB (Cherry MX Brown) | NAS: Synology DS1515+  - WD RED 3TB X 5|ROUTER: AC68U

Sound : | HEADPHONES: Sennheiser HD800 SPEAKERS: B&W CM9 (Front floorstanding) ,  B&W CM Center 2 (Centre) | AV RECEIVER : Denon 3806 | MY X99 BUILD LOG!

 

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Hey guys quick question can you run a crossfire config with an r9 270 x with an r9 280 x or does it have to be the exact same card?

You can't crossfire 270x and 280x, but you can crossfire 270 and 270x or 280 and 280x.

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