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R7 260X CROSSFIRE vs R9 270x

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October 12, 2013 2:36:14 AM

hello guys

i will go to buy new gpu and i play on 1080p
pls help me to choose buy R7 260x cross fire or R9 280x or R9 270x and thank you

More about : 260x crossfire 270x

October 12, 2013 2:52:03 AM

Mohamed Essam said:
hello guys

i will go to buy new gpu and i play on 1080p
pls help me to choose buy R7 260x cross fire or R9 280x or R9 270x and thank you


R9 280X at 300$
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Best solution

October 12, 2013 2:53:53 AM

Sapphire Radeon R9 280X OC Toxic 1.1 GHz is the best. Buy that one.
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October 12, 2013 6:01:52 AM

Random_G33K said:
Sapphire Radeon R9 280X OC Toxic 1.1 GHz is the best. Buy that one.


OK I HAVE XFx pro 550w 80 pronze is it enough for R9 280X
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October 13, 2013 12:58:26 PM

Mohamed Essam said:
Random_G33K said:
Sapphire Radeon R9 280X OC Toxic 1.1 GHz is the best. Buy that one.


OK I HAVE XFx pro 550w 80 pronze is it enough for R9 280X


Yes
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October 19, 2013 6:31:32 PM

NONONO! What are you talking about ? you cant run the 280x Toxic on 550W power... Jeez.. Sapphire suggests a 750W PSU... i mailed their Customer Support told them my rig (which is nothing special) and they said i need a 750W to 800W PSU! And i have a 700W seasonic.
The gigabyte 280x is the one of the more less hungry power ones and even that suggest a 600W PSU.
Dont do it dude you cant run the Toxic 280x with a 550W PSU!
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October 20, 2013 11:45:22 AM

Alex Leyzar said:
NONONO! What are you talking about ? you cant run the 280x Toxic on 550W power... Jeez.. Sapphire suggests a 750W PSU... i mailed their Customer Support told them my rig (which is nothing special) and they said i need a 750W to 800W PSU! And i have a 700W seasonic.
The gigabyte 280x is the one of the more less hungry power ones and even that suggest a 600W PSU.
Dont do it dude you cant run the Toxic 280x with a 550W PSU!


Facepalm. The card will reach around 300W at full load max. Sapphire always recommends around 150-200 watts more of your PSU than an average PC using that card would actually require, just to ensure you'd be completly fine even if you had numerous other power-draining
accesories connected to your pc.

You should really do some research before trying to state what is actually false.

You should be just fine with a 550w psu as long as its from a well known brand ( ex. corsair ) or certified like yourse. I would personally get a 600W myself just in case though..
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October 20, 2013 2:30:20 PM

I did my research that's why i posted, apparently you have not...
In full load the toxic sucks about 460W of power, which is ridiculously high, but nevertheless it dose actually suck that much.
This is was further backed up by Sapphire Customer Support (to whom i linked my full rig setup), so sorry.. i trust them more then i trust some random dude on a forum (also with 1 post :D  ), no offence.
Also look here :
http://www.anandtech.com/show/7406/the-sapphire-r9-280x...
I will add that none of the 280x cards available right now require as much power.
I stand by my opinion that you can not run the 280x Toxic with a 550W PSU...not safely in any case
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November 5, 2013 4:35:31 AM

That's not only the Toxic, it's the complete system load (including CPU, RAM, ...)!!!

The difficulty is that the PSU provides different voltage steps and rails which can only deliver a certain amount of electric current (measured in ampere (A)).
The most important one is the 12V rail, as the card gets most power from it. So if you're PSU has a strong 12V rail a 550W PSU might be enough.

Basic Power is 75W from PCIe Slot (3.3V@3A, 12V@5.5A).
A 6-pin connector must be able to deliver 75W more (12V@6.25A).
A 8-pin connector 150W (12V@12.5A).
So the 280x is allowed to use 300 Watts (PCIe + 6pin + 8pin). But the card will not use that much power, except you might overclock it yourself.
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December 30, 2013 8:17:22 PM

You guys went on a tangent about PSU's. Answer the guys question. You both make fairly valid points. More power is better, some PSU's make power better than others at stated ratings. Proceed.
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