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SLI worth $40?

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August 24, 2010 6:42:21 AM

I recently purchased a 9800gt for only 40$. I was wondering if I got another and used my mother boards sli capability, would it be worth the $40 I would be paying for the second card?

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a c 153 U Graphics card
August 24, 2010 6:57:53 AM

As long as you have the power for it and you currently can't play games at your desired settings. If you can play games at the setting you want then there is no point in another upgrade.
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a b U Graphics card
August 24, 2010 7:01:48 AM

For $80, and so long as you dont have to upgrade your motherboard or Power supply. Yes

However if you can play your games fine atm(I have one, and I can) theres no need.

~In saying this im upgrading to a 6xxx when they come out. want to be able to play games in nice Ultra settings.
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a b U Graphics card
a b V Motherboard
August 24, 2010 7:10:47 AM

SLI scales really well, so if your current PSU can handle the load, and your CPU is powerful enough to feed an SLI setup, it may be worth it.
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a c 376 U Graphics card
a b V Motherboard
August 24, 2010 7:20:28 AM

$40 for a 9800GT is a good price. Might as well get it just to put it on Ebay and make some money even if SLI wasn't a consideration.
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a c 153 U Graphics card
August 24, 2010 7:30:54 AM

jyjjy said:
$40 for a 9800GT is a good price. Might as well get it just to put it on Ebay and make some money even if SLI wasn't a consideration.


Yeah thats acutally a really good idea.
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a b U Graphics card
a b V Motherboard
August 24, 2010 6:40:30 PM

I would do it I crammed a spare computer together with old parts and SLIed two 9600 GT's and can max out HAWX at 1080p so you would be a bit better than that your performance will be in the 260GTX area 196 not the 216 but that will run anything if your not at or above 1080...
Look at this sometimes it kills it mostly comes in right below 260 still would be a good setup IMO.

http://www.motherboards.org/reviews/hardware/1812_7.htm...

T
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a c 173 U Graphics card
a b V Motherboard
August 24, 2010 8:01:53 PM

I would go with it and am running two 9800gt 1gb editions in sli right now. Most games do scale or perform on par with single. GTA IV doesn't scale at all while games like fallout3 are wonderful and Risen makes huge gains in sli. As for the board if it is Nvidia and has the slots then knock your self out. ATI or Intel that have a second slot that isn't 16x by 4x then there is a little known hack that can fix that ;)  If you do hack it performance won't make 60%+ gains but you should see 20-40% in most cases at stock settings. SLI works best when both cards are overclocked and then you will some big gains.
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a c 273 U Graphics card
a b V Motherboard
August 24, 2010 8:05:12 PM

nforce4max said:
I would go with it and am running two 9800gt 1gb editions in sli right now. Most games do scale or perform on par with single. GTA IV doesn't scale at all while games like fallout3 are wonderful and Risen makes huge gains in sli. As for the board if it is Nvidia and has the slots then knock your self out. ATI or Intel that have a second slot that isn't 16x by 4x then there is a little known hack that can fix that ;)  If you do hack it performance won't make 60%+ gains but you should see 20-40% in most cases at stock settings. SLI works best when both cards are overclocked and then you will some big gains.

That depends completely on the cards themselves, some cards just do not OC very well in pairs.
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a c 173 U Graphics card
a b V Motherboard
August 24, 2010 8:30:46 PM

Mousemonkey said:
That depends completely on the cards themselves, some cards just do not OC very well in pairs.



True but the user if they know what they are doing they can first set the clocks they want on the first card that will be also applied to the lower card. Then they can clock down the lower card to have ware it is stable. This is how I am able to max out my top card while leaving my lower card with in its limits and still be stable. My top card is 55nm and is slightly overvolted compared to the lower card and the lower card is older 65nm. I don't get the best uber clocks like 800mhz core and 2ghz shader but I manage with 700mhz on both with 1.8ghz shader. The top one manages at little more so i give it that little extra but the lower card doesn't clock that well when it comes to the vram. My older sli setups behaved in the same way. My old evga 7600gs that I regret selling scaled equally and were a joy when overclocking. My evga 7900gs ko card however were not. They were noisy and ran hot with those slim coolers. It was interesting that one was damaged to ware it would only be of use in sli as a slave any thing more just bsod on bootup. I had that I gotten as a lot auction for dirt cheap. $45 for all 3 with a vf900 and goodies including the stock coolers. Since I have moved my 9800gt s into my amd rig I will be getting a new card that supports 3 way for latter when I can afford to purchase two more and a better psu.
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a c 273 U Graphics card
a b V Motherboard
August 24, 2010 8:38:43 PM

My 7900's were able to be played about with as well even though they both started with different clocks but my 8800's, not so much. My mates 8800's whilst running the same default clocks as mine also don't give as many gains when OC'd as my 7900's used to in comparison but they do respond better to an OC than mine do.
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August 24, 2010 8:46:13 PM

Thanks for all the input. currently my set up is this

PSU is 550 watts
7900gt 512mb
core 2 duo E7500 2.9ghz
ASUS P5N-D NF750I SLI 775
3 gb corsair xms ( 1 gb of ddr2 5300/ 2gb of ddr2 6400)

would that setup support another card?
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a c 376 U Graphics card
a b V Motherboard
August 24, 2010 8:47:45 PM

What brand/model is the power supply?
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a c 153 U Graphics card
August 24, 2010 8:51:50 PM

Is that a good PSU? What brand is it? Also you have the 9800 in there now and not the 7900 right? :p 
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a c 173 U Graphics card
a b V Motherboard
August 24, 2010 8:54:56 PM

Mousemonkey said:
My 7900's were able to be played about with as well even though they both started with different clocks but my 8800's, not so much. My mates 8800's whilst running the same default clocks as mine also don't give as many gains when OC'd as my 7900's used to in comparison but they do respond better to an OC than mine do.


Agreed, I find it interesting how the old GF7 cards would perform well in some modern games while being a lag fest in others. Crysis was the worst while Fallout3 was bliss and GTA IV ran with out issue. The three 7900gs ko did ok but not at high ress. It was interesting when I used a bug to enable max setting (1280x1024) on them and they ran at a blazing 3fps :lol:  even when nuked. I ditched them when I was broke and needed the cash. They were the worst when it came to scaling. One of them though was real good when tinkered with right. The borked one did ok while the third was crap and would throw artifacts at low temps. Needless to say they were eBay fodder. Bios modding the two 7600gs were fun but the vram held them back. My two 9800gt s are in the middle though. One is a fantastic card and clocks like a charm despite of the limited vram clocks that tops out at 1ghz physical. The lower card isn't so good. It acts like a normal 8800gt due to the 65nm die and the vram is well :cry:  only 930mhz physical stable. Both are running with zalman coolers. Got a vf900 on the top card while the bottom has my vf1000. It sucks not having a second vf1000 for my 8800gtx. I even bought the matching vram and power stage cooler. My other cards are just dust collectors except for the vintage 3dfx 5500. I hate the early GX2 era short comings thanks to the bridge chip that makes my two 7900gtx duo/s aka the 7900GTX gx2 that was oem only aside from rare evga.

Sorry the long post guys. :sleep: 
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a c 173 U Graphics card
a b V Motherboard
August 24, 2010 8:56:41 PM

Peskoly said:
Thanks for all the input. currently my set up is this

PSU is 550 watts
7900gt 512mb
core 2 duo E7500 2.9ghz
ASUS P5N-D NF750I SLI 775
3 gb corsair xms ( 1 gb of ddr2 5300/ 2gb of ddr2 6400)

would that setup support another card?



Good board hence no hack needed and once more a decent cpu. If the psu is at least half ass or quality then you are good to go. Be sure to have the bridge aka the sli connector.
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August 25, 2010 2:12:03 AM

well the store I was getting it from is out of stock:(  but thanks anyways guys. btw its a cooler master 500 watt
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a c 173 U Graphics card
a b V Motherboard
August 25, 2010 2:33:03 AM

Peskoly said:
well the store I was getting it from is out of stock:(  but thanks anyways guys. btw its a cooler master 500 watt



That is a ok psu and the G92 GT aka the 8800/9800gt don't use that much power. As for the stock that sucks but you never know you might get lucky. I once landed a working 8800gtx for $32 but it needed a lot of repairs to bring into working condition.
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August 25, 2010 3:34:15 AM

how the heck did you get a 9800 for $40? Buy the second one, ebay them for $80 each, then buy a gt 460 for like $220. That's what I would do.
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September 1, 2010 8:32:57 AM

Best answer selected by peskoly.
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a c 273 U Graphics card
a b V Motherboard
September 1, 2010 10:26:07 AM

This topic has been closed by Mousemonkey
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