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Crossfire 7870 ice q and R9 270X ice q

Tags:
  • Power Supplies
  • AMD
  • Crossfire
  • Graphics
  • Graphics Cards
  • Radeon
Last response: in Graphics & Displays
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November 16, 2013 7:58:24 PM

So i read the 7870 and R9 270x can be crossfired im just wondering if its worth it or should i spend my money on a R9 280x instead of crossfiring a 7870 and 270x? I already own the 7870 and i would need a new mobo and power supply for the crossfiring ?

More about : crossfire 7870 ice 270x ice

a b ) Power supply
a b U Graphics card
November 16, 2013 8:02:48 PM

you cannot crossfire those cards. the 7870 cards are not from the same family (tahiti, hawaii, ect). the only card that you could crossfire would be a tahiti le card or the 7870xt.
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a b U Graphics card
November 16, 2013 8:06:18 PM

fkr said:
you cannot crossfire those cards. the 7870 cards are not from the same family (tahiti, hawaii, ect). the only card that you could crossfire would be a tahiti le card or the 7870xt.
amd said its possible just not supported nor recommended.
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November 16, 2013 8:29:00 PM

I would recommend u get R9 280X over CF the 7870 ~
Due to following reason :
CF still not stable in some games, and single gpu config have more stable fps compare to CF config.

What is your PSU model and brand ? thx ~
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a b ) Power supply
a b U Graphics card
November 16, 2013 8:32:52 PM

you may very well be right about the crossfire. the r270x is a remake of the 7870 so it may work.
http://sites.amd.com/us/game/technology/Pages/crossfire...
i do not see the new cards on this link yet.

as far as CF goes it has been rock stable for me and I am using a msi twin frzr 7950 and a tahiti le 7870 and across my 30 plus games it has worked great. I get no tearing or stuttering.
both of my cards are overclocked to 1200 and 1500.
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Best solution

a b ) Power supply
a c 114 À AMD
a c 156 U Graphics card
November 16, 2013 8:49:50 PM

zero00beat said:
So i read the 7870 and R9 270x can be crossfired im just wondering if its worth it or should i spend my money on a R9 280x instead of crossfiring a 7870 and 270x? I already own the 7870 and i would need a new mobo and power supply for the crossfiring ?

You can crossfire them because the HD 7870 and the R9-270X are the same card. If your motherboard has more than one PCI-Express x16 slot, it will work because all motherboards support crossfire but not all motherboards support SLI. You will need at least a brand-name 750W power supply to run both cards however. I run twin HD 7970s and I have no crossfire issues whatsoever. They run as smooth and as stable as any single card would. My gaming experience has been as smooth and fluid as synthetic motor oil.
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January 18, 2014 2:43:15 PM

The R9 270 and 270x cards use the Pitcairn (renamed Curacao) core, as long as your 7870 has that core it should work. If it has the Tahiti core then it probably won't work but may crossfire with the R9 280x which uses that core as does the 7950 and 70.

The Pitcairn 7870 has a stock core clock of 1000mhz, memory clock of 1200mhz and 1280 shaders and pipelines.

The Tahiti has a 975mhz core, a 1500mhz memory, and 1536 shaders and pipelines.

I've played around with a lot of hardware over the years and it's surprising what can work, but if you can't afford for it not to work buy the R9 280x, at least you know where you are at the time of purchase.
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January 18, 2014 3:15:29 PM

Spank1 said:
The R9 270 and 270x cards use the Pitcairn (renamed Curacao) core, as long as your 7870 has that core it should work. If it has the Tahiti core then it probably won't work but may crossfire with the R9 280x which uses that core as does the 7950 and 70.

The Pitcairn 7870 has a stock core clock of 1000mhz, memory clock of 1200mhz and 1280 shaders and pipelines.

The Tahiti has a 975mhz core, a 1500mhz memory, and 1536 shaders and pipelines.

I've played around with a lot of hardware over the years and it's surprising what can work, but if you can't afford for it not to work buy the R9 280x, at least you know where you are at the time of purchase.


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