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[tcmag] GTX280 needs 550W+ PSUs - Page 3

post #21 of 40
Lets say a GPU is 250watts and the minimum power requirement is 500w for a single card but to SLI them do you really need a 1000+watt PSU for them to run? What about throughput or efficiency allows you to use a 900 watt PSU.
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post #22 of 40
ill buy one and use the step from my 9800 gx2's to get the other pair to tri sli them, but only if they are faster.
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post #23 of 40
Man the 2900XTs don't even need this.....I pull 715W ABSOLUTE max from the wall during full gaming load according to my digital power meter on my UPS..........that's with a massive OC on the Q6600 and both GPUs, water pump, all my fans, cathodes, etc.
The thing is though this is only while gaming, so it's no big deal. If this card can tone it down in 2d mode then it's all good.....after all, if it performs then you don't get this performance for free.
Eventually we can hopefully advance the technology far enough to minimize all the energy consumption.....but until then.....giant PSUs for all!
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post #24 of 40
Quote:
Originally Posted by binormalkilla View Post
Man the 2900XTs don't even need this.....I pull 715W ABSOLUTE max from the wall during full gaming load according to my digital power meter on my UPS..........that's with a massive OC on the Q6600 and both GPUs, water pump, all my fans, cathodes, etc.
The thing is though this is only while gaming, so it's no big deal. If this card can tone it down in 2d mode then it's all good.....after all, if it performs then you don't get this performance for free.
Eventually we can hopefully advance the technology far enough to minimize all the energy consumption.....but until then.....giant PSUs for all!
i just bought this tx750 for future upgrades hoping it would be enough. ......if i run two 260 GTX i should be ok......
   
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post #25 of 40
if you have a quality psu over 650, you'll be fine for sli.
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post #26 of 40
You could always buy one then wait till the die shrink version comes out and get that for sli...
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post #27 of 40
Sounds like all the nVidia boys are eating some humble pie considering all the nay saying about the 2900's.
post #28 of 40
Quote:
Originally Posted by linskingdom View Post
GTX260 is 147W and GTX is around 250W-270W. With OC on CPU/GPU and other components, I would go for a 650W PSU.
Pretty sure the numbers you are stating are the TDP and not the use, use is higher.
    
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post #29 of 40
Thread Starter 
Quote:
Originally Posted by RPIJG View Post
Pretty sure the numbers you are stating are the TDP and not the use, use is higher.
That's correct.
post #30 of 40
If you see a neighborhood with dimming lights, its someone benching his Tri-Sli system with the GT280s running at full power. If you see a neighborhood with no lights, the same idiot tried overclocking them as well.
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