Is it possible to Crossfire two different R9 270?

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DanielMZXG

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System:
I5-6600k (OCed to 4.4~4.6Ghz)
16GB HyperX ram (2x8gb) ddr4 2400mhz
Gigabyte ga-z170mx gaming 5
Seasonic 750X - Gold (750W)
Gigabyte R9 270 OC version (OCed to maximum)

Cooling hardware:
Arctic Liquid Freezer 240
x4 Corsair fans AF120

1.Is it possible to CF with a different R9 270 (like Asus, EVGA, MSI etc..)
2.Is 750W PSU is ok for it?
3.Will I notice a "big" change in games about the FPS?
4.is CF stable?
5.Worth it?

By the way, I won't sell it and buy any new card because in my country stronger cards like GTX 960 is minimum 300$... I'll buy the GTX X 80 TI when it comes out.

thanks.
 
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RCFProd
Yes ofcourse It's possible, and a power supply as great as the Seasonic X750 is enough to power them. They're the same graphics cards in the end. The last 3 point you ask though can be complicated. You will notice a big difference in Battlefield 4, as that game supports crossfire very well. Which other games will give you a big boost? Some will, but a lot of them probably won't. Can't you find a used second R9 270 for cheap?
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RCFProd

RCFProd

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Yes ofcourse It's possible, and a power supply as great as the Seasonic X750 is enough to power them. They're the same graphics cards in the end. The last 3 point you ask though can be complicated. You will notice a big difference in Battlefield 4, as that game supports crossfire very well. Which other games will give you a big boost? Some will, but a lot of them probably won't. Can't you find a used second R9 270 for cheap?
 
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DanielMZXG

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I do gonna buy a used one. a used one is about 120$, and a new one is 220$.
The used one which I found is Sapphire R9 270 2GB OC version.
Should I go for it?
By the way, I will Oc both cards for sure.
2nd By the way, my main game is Guild Wars 2, so will I notice any different with it?
 
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RCFProd

RCFProd

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This thread explains it pretty well:
http://www.techpowerup.com/forums/threads/guild-wars-2-crossfire-performance.173933/

I played Guild Wars 2 with an R9 270 once, it was alright. Maybe you should just keep that until the new GPU's arrive.
 
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DanielMZXG

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Well, it is from 2012, which was a long time ago... since then, new drivers updates etc.
I play on FHD btw.
I will ask in GW2 forum for more info.
Thanks for the help!

btw, as I asked, the 750W will be ok for 2 OCed cards and an OCed CPU, correct?
 
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