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GTX970 SLI requirements

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  • Power Supplies
  • Graphics Cards
Last response: in Graphics & Displays
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September 20, 2014 5:01:18 AM

Im going to upgrade to a single 970 soon, but i would like to know if there is headroom for a 2-way SLI in the future...

CURRENT SPECS:
CPU: i5 4670K
MOBO: GA-Z87x UD3H
SSD:Corsair Force GS 240GB
PSU: Corsair RM650m
CASE FANS: Fractal silent series r2 140mm X3
CPU COOLER: Coolermaster 240 Evo

Even though the wattage seems sufficient under stock speeds i hear there might be an issue with the Amperage my PSU can handle?

More about : gtx970 sli requirements

September 20, 2014 5:42:21 AM

i7Baby said:
You need to get a good quality 750W PSU for 2 x gtx970's. From tiers 1, 2a or 2b of http://www.tomshardware.com/answers/id-1804779/power-su...

eg Seasonic M12II 750 $95 at Newegg


And what am i supposed to do with the RM650? i can't refund it and it cost $120 at that time :/ 
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a c 110 ) Power supply
a c 223 U Graphics card
September 20, 2014 5:43:32 AM

Sell it.
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September 20, 2014 7:34:29 AM

Honestly, I doubt you will ever hit the 274 watts. Unless you are pushing the cards in prime 95 or some other benchmarking software, it wouldn't seem likely. I love the Guru reviews, but that has always been one complaint I have always had.
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a b U Graphics card
September 20, 2014 8:03:18 AM

well if you checked the link they have nominal "average" power consumption rates which puts the 970 at around 170w. better to be on the safe side than sorry.
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September 20, 2014 8:46:23 AM

wh3resmycar said:
http://www.guru3d.com/articles_pages/nvidia_geforce_gtx...

pretty dangerous stuff imho, 274w per card at full load, not to mention you'll be adding stuff up and then oc'ing that k processor to hell.


what are you talking about? visit Nvidias webpage each GTX970 consumes 145watt at factory settings. As for the K i picked it up on a sale when it was even cheaper than the non-K variant, its not that i need to OC or anything. Same goes for the gpus, i game on a 1080p anyway so all i care about is future proofing, i don't think i ll ever need to OC gpu/gpus either.
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a b ) Power supply
a c 273 U Graphics card
September 20, 2014 9:26:17 AM

I had two 170w cards running on a 620w PSU for a couple of years without it going pop and with 2x 6 pins for power the 970 should be rated to 225w max. I too have often wondered at how some review sites get to their conclusions.
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September 20, 2014 9:27:28 AM

If you game at 1080p, then you wouldn't need a second 970 at all.
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September 20, 2014 1:03:46 PM

itisravi said:
If you game at 1080p, then you wouldn't need a second 970 at all.


Now i wouldn't but perhaps i would in 2 years.
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a c 110 ) Power supply
a c 223 U Graphics card
September 20, 2014 3:42:34 PM

I'd allow for it - for 'future proofing'

Edit - PSU

That guru link showed

gtx970 - 164W (Geforce shows 145W)

gtx980 - 171W (Geforce shows 165W)

and for reference a R9 270x - 177W
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September 20, 2014 4:59:35 PM

Assuming their TDP is 164watt we have a total of 413watt including the CPU... Why is not 650watt Gold efficiency not enough?
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a b U Graphics card
September 21, 2014 1:19:39 AM

Greg55 said:
itisravi said:
If you game at 1080p, then you wouldn't need a second 970 at all.


Now i wouldn't but perhaps i would in 2 years.


that doesn't really work. you usually end up getting a new card which is more efficient, gtx670 vs gtx970 (from kepler to maxwell).
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