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Can I SLI 2 GTX 660 ti's with my PSU?

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Hey everyone! I came here to find out if I can SLI 2 GTX 660 ti's with the following psu?

Cooler Master Silent Pro M2 620W
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Here are my specs:

Intel Quad Core i5 3570K 3.4Ghz (I plan on overclocking between 4.2 and 4.5Ghz)
Cooler Master 212 EVO Push/Pull
ASRock Z77 Extreme4
8gb Corsair Vengeance 1600 (May go up to 16gb, the 8gb came with the motherboard)
EVGA Geforce GTX 660 ti FTW Signature2 Edition
120GB Samsung 840 SSD
1TB WD Caviar Black
DVD/CD RW (Eventually blue ray reader)
NZXT Touch Fan Control

Currently will play with a 26" 720p HD tv.. Eventually I would like to have a 3 monitor setup if I can all 23" at 1080p if I can..

I literally haven't even built the computer yet and the only thing I've bought is the PSU.. SO if you think there are better options of what I plan on then suggest them please because this is my first build haha but I want to know if I can get 2 graphics cards..

More about : sli gtx 660 psu

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in my opinion, i'd rather get a single 680 than sli two 660ti's simply coz i'm not comfortable with multiple gpu set ups. but that's just me. besides, you can always sli the 680 should it prove to be inadequate in the near future (should nvidia not EOL the 680 in that near future but i highly doubt it).
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Can an SLI setup like I'm talking about be difficult or have issues? And can either run 3 23"-24" 2ms screens with good fps on ultra? (Main games being Battlefield 3, soon to be Crysis 3, and soon to be Sniper Ghost Warrior 2 or whatever it's called haha)

I plan on streaming games to Twitch one screen being the game, one being the programs open, and one viewing my own stream to see the chat and if it looks good. I don't think I'd ever stream while playing on 3 screens lol...

XxInvisoShankxX said:
Can an SLI setup like I'm talking about be difficult or have issues? And can either run 3 23"-24" 2ms screens with good fps on ultra? (Main games being Battlefield 3, soon to be Crysis 3, and soon to be Sniper Ghost Warrior 2 or whatever it's called haha)

I plan on streaming games to Twitch one screen being the game, one being the programs open, and one viewing my own stream to see the chat and if it looks good. I don't think I'd ever stream while playing on 3 screens lol...

SLI can sometimes be inconsistent in terms of performance as opposed to single gpu solutions which is mostly stable if not always. still, since you already have one 660ti, SLI is not a bad choice.

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Power supply Master

chromic said:
whats ur obsession with crossfire :D 

just sell your 660TI for 200$+ and buy a 7970, alot better to buy 1 strong card than 2 " weak " cards



I have to disagree, two 660 ti in SLI(it's SLI not crossfire) is better than any single high end card(single gpu on the pcb, that excludes the 690 gtx or 7990) like the 7970 ghz edition or 680 gtx, the 660 ti isn't a weak card, by the contrary, they're good mid end cards.

http://www.xbitlabs.com/articles/graphics/display/gefor...

@op since you have already one 660 ti, there's no point in getting any single card except another 660 ti.

djangoringo said:
I have to disagree, two 660 ti in SLI(it's SLI not crossfire) is better than any single high end card(single gpu on the pcb, that excludes the 690 gtx or 7990) like the 7970 ghz edition or 680 gtx, the 660 ti isn't a weak card, by the contrary, they're good mid end cards.

http://www.xbitlabs.com/articles/graphics/display/gefor...

@op since you have already one 660 ti, there's no point in getting any single card except another 660 ti.


I said the only thing I've bought so far is the PSU and just recently bought the motherboard because it comes with 8gb of corsair vengeance ram. I have not bought a GPU yet, but I do know SLI OR Crossfire setups are better than most high end cards spec wise I just didn't know if I could do that kind of setup with my 620W PSU but now I know I can so my thing is now what cards should I go with? The 3gb 660 ti or the 3gb Radeon 7950 and if not one of those then what?
Power supply Master

Since you listed the specs of the pc, i thought you already got the stuff, and you were asking if you psu will handle a second one.
If you didn't bought any, the 660 ti is still a good card for it, the 7950 offers two games though, crysis 3 and bioshock, the 660 ti offers f2p game credits(ps2, hawken,wot).

djangoringo said:
Since you listed the specs of the pc, i thought you already got the stuff, and you were asking if you psu will handle a second one.
If you didn't bought any, the 660 ti is still a good card for it, the 7950 offers two games though, crysis 3 and bioshock, the 660 ti offers f2p game credits(ps2, hawken,wot).


I understand, although I did say I hadn't bought much yet :p 

Anyway do you think that I'd be able to sell the game credits for much? Say $100 or so as they are worth $150 and I will never play those games.. I am going to be buying Crysis 3 but not bioshock so in a way that would be good.. Which one is better long term? Because I WILL eventually get two and do an SLI or Crossfire setup..
Power supply Master

For two 7950 CF you'll need a 650-700W psu, but the one you have has the amps for two 7950, two 660 ti will draw less power, also for multi gpu setups, nvidia has better drivers for it.
For a single card setup, and if you want crysis 3, then get the 7950, i don't know if someone will be interested in buying those credits in a f2p game(from the 660 ti offer).

djangoringo said:
I have to disagree, two 660 ti in SLI(it's SLI not crossfire) is better than any single high end card(single gpu on the pcb, that excludes the 690 gtx or 7990) like the 7970 ghz edition or 680 gtx, the 660 ti isn't a weak card, by the contrary, they're good mid end cards.

http://www.xbitlabs.com/articles/graphics/display/gefor...

@op since you have already one 660 ti, there's no point in getting any single card except another 660 ti.

+1

djangoringo said:
For two 7950 CF you'll need a 650-700W psu, but the one you have has the amps for two 7950, two 660 ti will draw less power, also for multi gpu setups, nvidia has better drivers for it.
For a single card setup, and if you want crysis 3, then get the 7950, i don't know if someone will be interested in buying those credits in a f2p game(from the 660 ti offer).


So it would be safer and better to do the 660 ti's if going SLI, but 7950 for single.. Well I'm thinking the GTX's seeming how I WILL do dual cards later on so that can destroy with a multi monitor setup. Sure I'd love to get Crysis 3 for free but SLI GTX's seems like a much better idea. Thank you!

ah, i overlooked that you are planning to overclock pretty high, if you plan on going sli or crossfire, i personally would've gone with at least a good 750 - 850 watt psu, i would advise going to pcpartpicker and seeing what the estimated wattage is

nothing wrong with going amd, but they usually run more wattage, take that into consideration

honestly, i would go the 670 route single card as opposed to the 660ti sli...granted either ones you will enjoy your games no doubt, but the overclocked single 670 will give you amazing performance (your watts will still be well below your range) and it will hold up longer against newer cards.

and if you read the benchmark link i posted, if you want to do multi monitor, you'll get way more performance from the 670's

Memory Interface 660ti: 192-bit 670: 256-bit

but its whatever you want to do of course, i'm only stating my opinion, either way you will enjoy any game you play lol

For a single setup the article says 660ti overclocked is matched if not better than a 670 but in sli 670 is better however in sli that will be $200 more than sli 660 ti's so is it REALLY that much better for the large extra cost?

Also I've heard bus width doesn't matter until you go past 1080p but does that apply to multi monitor 1080p?

ALSO haha the 3 monitors will end up costing like $400 or a little less depending on sale price so $200 more for the sli 670's is a lot..

what about an overclocked 660ti against an overclocked 670? lol it can't really compete. but 3 monitors for $400? are they 2ms? 75+ refresh? are they high res or low res? if you're not going high res on your monitor, no point in getting anything greater than the 660ti

660ti sli: $588

670 single: $374 and you also get a $20 mir, which = $354

the 670 would be more bang for your buck since you can overclock it to 680 specs

djangoringo said:
Two 670 gtx will draw more power and you'll need a higher capacity psu, within 700-750W, so either get stay with a single card setup or two 660 ti in SLI(planned).



And there's my answer, mind you guys I'm coming from console gaming with my last gaming PC being 8 years ago so a single 650 would be better than what I'm used to lol... If I decide someday that dual 660 ti's isn't enough I'll upgrade to the 700 series when it comes out or maybe even 800 or 900 depending on how long it takes for me not to like the 660 ti's lol. I will not buy a new psu so now that my original plan is confirmed to be able to work I'm just going to stick to that..

HoboCannibaL said:
what about an overclocked 660ti against an overclocked 670? lol it can't really compete. but 3 monitors for $400? are they 2ms? 75+ refresh? are they high res or low res? if you're not going high res on your monitor, no point in getting anything greater than the 660ti

660ti sli: $588

670 single: $374 and you also get a $20 mir, which = $354

the 670 would be more bang for your buck since you can overclock it to 680 specs


I'm going with the 3gb 660 ti more than likely, link the 670 cause I sure don't see that..

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Response Time
2ms (GTG)

Horizontal Refresh Rate
31 - 79 KHz

Vertical Refresh Rate
56 - 75 Hz

HoboCannibaL said:
here's the link to the 670 http://www.newegg.com/Product/Product.aspx?Item=N82E168...

keep in mind that either way you go, you will really enjoy your gaming especially since coming from console lol....either way you look at it, you're getting an awesome vid card lol

hah, and good choice on monitor, i just bought that same one earlier today, its a steal for that price, gotta love the presidents day sales lol


That 670 is also only 2gb.. I'm just going to go with the 3gb 660 ti's and be in awe of the difference between that and my PS3 haha anyway for the first while I'll just be using one 720p 26" tv that is somehow recognized as a 1080p tv lol and a VGA monitor until I start buying the ASUS monitors (x
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