r9 280x watts?

[TasTyDK]

hi i have thought about how many watts would two r9 280x's take. would 860 watts be good or not?

[H4X3R]

860 watt should be fine. Just make sure its a good quality PSU (860 i assume the ax 860i).

[TasTyDK]

860 watt should be fine. Just make sure its a good quality PSU (860 i assume the ax 860i).

yeah i would get the ax860i but thx i just wanted to know if it was enough so thx

[WoodenMarker]

2 280x's draw a bit under ~500w. A good 750w psu should do. 

[TasTyDK]

2 280x's draw a bit under ~500w. A good 750w psu should do. 

i'll just get a 860 watts psu just to be sure

[WoodenMarker]

i'll just get a 860 watts psu just to be sure

I'm guessing it's the ax860(i) which is pretty overkill unless you're heavily overvolting the cards and pushing a heavy cpu oc. 

[TasTyDK]

I'm guessing it's the ax860(i) which is pretty overkill unless you're heavily overvolting the cards and pushing a heavy cpu oc. 

i will probably be oc'ing it pretty good

[Socratic]

Highest I've seen my r9 280x ever draw was 180+ watts maybe 190w.

[eshbop]

A crossfire 280x's system will draw ~550W from the wall (with a heavily overclocked LGA2011 system). Either a 760W or 860W will be plenty.

 

Also, unless you really want the Corsair Link stuff, myself having used both AX and AXi PSU's I'd suggest going with an AX (the non 'i' version). Apart from costing less, they don't do the annoying self-check thing every time you boot up (ramps the fan to 100%) and will operate fanless at anything below 70% load (the AXi fan starts spinning at 30-40% load). An AX860's fan will never spin with your setup.

 

Technically the AXi's test slightly better but in reality they are both of a quality that the difference hardly matters. 

[daemonowner]

I would recommend an EVGA Supernova G2 750W if you have an Intel CPU, 850W with an AMD CPU or a bunch of HDDs etc. The G2 Series is excellent and very competitively priced against the Corsair AX, AXi and HXi series.

[eshbop]

The G2 Series is excellent and very competitively priced against the Corsair AX, AXi and HXi series.

Plus an extra 3 years of warranty.

[daemonowner]

@eshbop *When you register 

[Nickolas47]

I have an ax860i and an 280x inam planning to cf very soon but i recommend you the non i edition corsair link sucks

[daemonowner]

I have an ax860i and an 280x inam planning to cf very soon but i recommend you the non i edition corsair link sucks

Corsair link isn't the only difference. The AXi series is made by an arguably superior manufacturer, Flextronics, and has better build quality. But yes, Corsair Link is useless.

[Nickolas47]

Corsair link isn't the only difference. The AXi series is made by an arguably superior manufacturer, Flextronics, and has better build quality. But yes, Corsair Link is useless.

yes but i think the non i edition is created by seasonic arent they superior?

[atrash]

Nickolas47, on 09 Jun 2014 - 01:02 AM, said:

yes but i think the non i edition is created by seasonic arent they superior?

 

They are both on par. Seasonic made unit seem to have better/quieter fan profile than the Flextronic made. And no gimicky Corsair link stuff=cheaper=better value

[daemonowner]

@Nickolas47 @atrash Except Seasonic has screwed up with the widespread coil whine issues on the AX platinum series, and I believe quan289 considers the AXi Series to be superior in quality to the AX platinums or golds.