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Corsair TX850 v2 enough for 7950 CFX/670SLi?

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January 12, 2013 1:34:02 AM

I am going to be running this new gaming rig, need some help to make sure the power supply is quite enough for dual 7950's or 670's, whichever I decide to go with. I am only running 1 hard drive at the moment in it, no ssd or anything else for now. So basically will a Corsair TX 850 be enough for an overclocked i7 3770K and dual video cards of these sort? Thanks
a b U Graphics card
January 12, 2013 1:49:14 AM

mf2385 said:
I am going to be running this new gaming rig, need some help to make sure the power supply is quite enough for dual 7950's or 670's, whichever I decide to go with. I am only running 1 hard drive at the moment in it, no ssd or anything else for now. So basically will a Corsair TX 850 be enough for an overclocked i7 3770K and dual video cards of these sort? Thanks

decent 700w should be fine
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a c 185 U Graphics card
a c 122 ) Power supply
January 12, 2013 1:50:40 AM

nVidia itself recommend 500W for a single 670. Add 170W for SLI & recommended is 670W.
http://www.nvidia.in/object/geforce-gtx-670-in.html#pdp...


For testing conducted for SLI 670, the resulting system consumption for SLI is 433W of which 293W are attributed to the gpu cards.
http://www.guru3d.com/article/geforce-gtx-670-2-and-3wa...


Radeon HD 7950 - On your average system the card requires you to have a 500~550 Watt power supply unit.
Radeon HD 7950 Crossfire x2 - On your average system the cards require you to have a 700 Watt power supply unit as minimum. http://www.guru3d.com/articles_pages/radeon_hd_7950_cro...


All points out to 850W being more than enough.
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January 12, 2013 1:52:11 AM

Thanks guys. If you haven't yet please give me your votes on my thread 7950 cfx vs gtx 670 sli for my new gaming rig. Thanks
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a b U Graphics card
January 12, 2013 2:10:50 AM

mf2385 said:
Thanks guys. If you haven't yet please give me your votes on my thread 7950 cfx vs gtx 670 sli for my new gaming rig. Thanks

both amd and nvidia i would be assuming will be announcing new products soonish i cant comment on either of the cards u listed, i dont have either and i havent done crossfire since my dual 4850's, but i think that has put me off those setups, im pretty sure they have improved heaps but your setup will only be as good as the drivers they release, and with drivers i would probably trust nvidia for that plus the nvidias use less power and produce less heat as far as i know ( correct me if im wrong) but that is another thing you should be looking into cos they will run a bit hotter sitting next to each other, heat=noise. back on topic but get one card now and get the second one when they go on clearance after the new cards are released and save yourself a hundred bucks or so!
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January 12, 2013 2:19:48 AM

Nah I'm not getting one card because I don't want one card, I had a 670 with my last setup it was good, but I want both cards because I plan on using them for awhile, maybe until the gen after this one coming up. Then I will upgrade. Not the "infamous" statement, buy one get another later because that's just said to be said, it's better to buy both now if you can, like I can, lol.
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a c 87 U Graphics card
a b ) Power supply
January 12, 2013 2:23:35 AM

If you already have a 670, then there's little point in getting two 7950s instead of a second 670. If you didn't have a 670, then I'd probably vote for two 7950s if you like overclocking and two 670s if you don't plan on overclocking much. 7950s usually don't best 670s without heavy overclocking except in a few situations that are very memory bandwidth sensitive or very DirectC/OpenCL sensitive.
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