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[Official] MSI GTX 780 Lightning Owner's Club - Page 238

post #2371 of 5050
Quote:
Originally Posted by neoroy View Post

Yup it doesn't like 1700MHz of memory frown.gif with 1650MHz memory my score is higher check this link : >>post #2327<<
It's memory that messed it up, with 1650MHz I can do 70 FPS too like this one :>>post #2327 smile.gif

Abit tested with Rbby's tool ^_^ :
kky1.png
Much better
 
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post #2372 of 5050
Quote:
Originally Posted by Bishop07764 View Post

You sure that the driver didn't crash and tank your frame rate? I get 70 + fps on valley at those settings and a res of 1920 x 1200.

Looking at the framerate in the saved screen (28 FPS) that is what happened. My Lightning with Elpida was doing the same with any clock over 1710, about 3/4 of the way through the FPS was just dropping to about 1/2 speed. Cooling makes a bit of difference, the memory doesn't run hot but going from indoors to outdoors with 15° cooler ambient gave a bit more memory clock.
Quote:
Originally Posted by Bishop07764 View Post

I had such a good experience with crossfire that I may want to get another 780 and try sli. Have you thought of doing that instead? I'm wondering if I would need a beefier power supply though. I have a i7 3770k at 4.8 ghz , dvdrw, fan controller with about 23 fans, 2 MCP 655 pumps, Samsung 840 ssd, Seagate Barricuda 2 tb, and potentially 2 overclocked lightnings. I didn't do 5 GHz on CPU b/c I thought it would save a bit of power considering my CPU voltage needed to go from 1.24-.248 range to 1.3 plus. I need to get a kilo watt reader I guess to give me a better idea.

All depends on how much you push the voltage & clocks, single card at 1.45V (& overclock to match) with 3930k at 5ghz on water can pull upwards of 900W from the wall with a gold rated PSU, I only ran sli once for this bench



Can't remember the voltage set for that but the kill-a-watt had 1440W from the wall, probably ~1200W pulled from the PSU factoring in efficiency.
    
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post #2373 of 5050
Hey guys-- I officially became a member of this club 20 minutes ago --- Woohaa

Look at dis:


biggrin.gifbiggrin.gif



I am sure I will enjoy reading these comments in this club. wink.gif

thumb.gif
post #2374 of 5050
Quote:
Originally Posted by FtW 420 View Post

Looking at the framerate in the saved screen (28 FPS) that is what happened. My Lightning with Elpida was doing the same with any clock over 1710, about 3/4 of the way through the FPS was just dropping to about 1/2 speed. Cooling makes a bit of difference, the memory doesn't run hot but going from indoors to outdoors with 15° cooler ambient gave a bit more memory clock.
All depends on how much you push the voltage & clocks, single card at 1.45V (& overclock to match) with 3930k at 5ghz on water can pull upwards of 900W from the wall with a gold rated PSU, I only ran sli once for this bench



Can't remember the voltage set for that but the kill-a-watt had 1440W from the wall, probably ~1200W pulled from the PSU factoring in efficiency.

Info is very much appreciated. Thanks. My cpu wouldn't be quite as power hungry as yours but the combination of everything means its looking like I will need a new psu if I want to go overclock sli. I think I know what my next birthday present might be then. tongue.gif I miss having a fully modular power supply too. Trying to stuff all those cables behind the motherboard along with all my tubing was suprisingly tight for even my 900d. I had been looking at a Seasonic 1,250. You guys have any good recommendations for power supplies?
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post #2375 of 5050
Quote:
Originally Posted by Bishop07764 View Post

Info is very much appreciated. Thanks. My cpu wouldn't be quite as power hungry as yours but the combination of everything means its looking like I will need a new psu if I want to go overclock sli. I think I know what my next birthday present might be then. tongue.gif I miss having a fully modular power supply too. Trying to stuff all those cables behind the motherboard along with all my tubing was suprisingly tight for even my 900d. I had been looking at a Seasonic 1,250. You guys have any good recommendations for power supplies?

EVGA SuperNova G2 1300 watts is a better option

its 60$ and its pretty much as good
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post #2376 of 5050
Quote:
Originally Posted by Durvelle27 View Post

Well i looked at a lot of benchmarks/reviews and even 2x 780s lacked at 4K. Only 2x 290(X) & 780 Tis were able to delivery acceptable performance

I see. In the reviews, that was where the 290s (X) really seemed to shine. Not having to have a physical bridge for crossfire would be pretty neat too along with another gig of v-ram.
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post #2377 of 5050
Quote:
Originally Posted by shilka View Post

EVGA SuperNova G2 1300 watts is a better option

I thought I had read about some quality issues with the EVGA power supplies. I suppose that you have a chance of a psu failing with any brand that you get. I will check out that option. Thanks. smile.gif
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post #2378 of 5050
Quote:
Originally Posted by Bishop07764 View Post

I thought I had read about some quality issues with the EVGA power supplies. I suppose that you have a chance of a psu failing with any brand that you get. I will check out that option. Thanks. smile.gif

That was one batch and that was a while ago

Whole batch was replace for free and everyone got a free T-Shirt with their replaced PSU

Also the G2 is not made by EVGA nor is any of the PSU´s EVGA sell made by EVGA
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post #2379 of 5050
Quote:
Originally Posted by Bishop07764 View Post

I thought I had read about some quality issues with the EVGA power supplies. I suppose that you have a chance of a psu failing with any brand that you get. I will check out that option. Thanks. smile.gif

According to Shilka (one of OCN's resident PSU experts) the EVGA supernova 1000/1300 G2/P2 series are some of the best PSUs available in terms of build quality. Their 750w units aren't supposed to be nearly as good though.

Plus they're gorgeous PSUs. I don't regret purchasing mine for a moment. Upgraded from an AX850, which by itself is a quality PSU.

EDIT: Lol. Didn't notice that it was shilka who had posted above me. I need to get more sleep tongue.gif
 
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post #2380 of 5050
Quote:
Originally Posted by eXecuution View Post

According to Shilka (one of OCN's resident PSU experts) the EVGA supernova 1000/1300 G2/P2 series are some of the best PSUs available in terms of build quality. Their 750w units aren't supposed to be nearly as good though.

Plus they're gorgeous PSUs. I don't regret purchasing mine for a moment. Upgraded from an AX850, which by itself is a quality PSU.

EDIT: Lol. Didn't notice that it was shilka who had posted above me. I need to get more sleep tongue.gif

EVGA NEX650G/750B/750G are FSP not Super Flower
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