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7950 CF vs. 680 single card - Page 2

post #11 of 138
2 7950s would wreck a single 680
Quote:
Originally Posted by General123 View Post

Overclocked, yes. Versus a 680 Lighting overclocked? No. But the 7950's are better imo.

Depends on the quality of the 7950. A 7950 like mine[1280/1800] will easily oust a 680 Lightning. And I've owned the Lightning.
post #12 of 138
Thread Starter 
Wow thanks for the advice guys I was going to get a gtx 680 lightning but now I'm set on AMD smile.gif
post #13 of 138
Quote:
Originally Posted by Bruennis View Post

2 7950s would wreck a single 680
Depends on the quality of the 7950. A 7950 like mine[1280/1800] will easily oust a 680 Lightning. And I've owned the Lightning.

Hey I've been lurking around and reading about how awesome the 7950/7970 are when overclocked. I have never overclocked a video card. I'm currently using 2 GTX 480's that I'm in the process of selling because of the ridiculous power draw/heat/and temperatures (my room is like a sauna). I was definitely planning to get a GTX 680 as I like to play games with Phys X, but from reading around and seeing that people can get close to 680 performance with a 7950 overclocked. I'm starting to think about picking up a 7970.

- Can someone give me some tips or point me in the right directions about overclocking video cards? I have no idea how to do it properly.
- Is it easy to overclock video cards?
- I want to overclock, but I wanna do it without using a crazy amount of power like my 480 or making my room a sauna and I don't want my fans spinning at crazy speeds at idle. Is it possible to maintain this while overclocking?

Sorry OP, not tryna to threadjack.
post #14 of 138
Quote:
Originally Posted by Massive17 View Post

Hey I've been lurking around and reading about how awesome the 7950/7970 are when overclocked. I have never overclocked a video card. I'm currently using 2 GTX 480's that I'm in the process of selling because of the ridiculous power draw/heat/and temperatures (my room is like a sauna). I was definitely planning to get a GTX 680 as I like to play games with Phys X, but from reading around and seeing that people can get close to 680 performance with a 7950 overclocked. I'm starting to think about picking up a 7970.
- Can someone give me some tips or point me in the right directions about overclocking video cards? I have no idea how to do it properly.
- Is it easy to overclock video cards?
- I want to overclock, but I wanna do it without using a crazy amount of power like my 480 or making my room a sauna and I don't want my fans spinning at crazy speeds at idle. Is it possible to maintain this while overclocking?
Sorry OP, not tryna to threadjack.

HD 7950 overclocked to 1.15 Ghz is on par or slightly faster than GTX 680(1.3 Ghz) . at the same clocks HD 7950 is 3 - 5% slower than HD 7970. As for overclocking its quite easy. if you want to overclock without increasing power and heat significantly stick to stock voltage overclocking. Most HD 7950 boost cards can hit 1.05 - 1.1 Ghz at stock voltage. just max out the power control to +20% in AMD Overdrive in Performance tab in AMD CCC. push the gpu clocks to 1.1 Ghz and test for stability using heaven 3.0, 3D Mark 11, BF3, Crysis 2. if the card artifacts , freezes or crashes reduce clocks by 25 mhz and test again. repeat this till you get stable clocks. also set manual fan speed to keep core temps below 70c and vrm temps below 90c. use GPU-Z or HWInfo32 to monitor temps.
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post #15 of 138
Thanks for the explanation.

So it's better to get a 7950 than a 7970?! since the difference between them is only 3%-5% .
post #16 of 138
Quote:
Originally Posted by Massive17 View Post

Thanks for the explanation.
So it's better to get a 7950 than a 7970?! since the difference between them is only 3%-5% .

yeah. get the sapphire HD 7950 boost with 925 mhz boost clocks. this card has a good cooler. will keep the card quiet even when overclocked to 1.1 Ghz. comes with 3 very nice games for free. very good user reviews. enjoy thumb.gif

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006
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post #17 of 138
There was a sapphire 7970 for only $30 more. Should I get that instead ?
post #18 of 138
Quote:
Originally Posted by Massive17 View Post

There was a sapphire 7970 for only $30 more. Should I get that instead ?

which model. if its with the reference cooler i would say don't . if its with the dual x cooler go for it. the reference cooler can get loud once you hit 1.1+ Ghz speeds. the dual x cooler is quieter and cools more efficiently.
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post #19 of 138
To OP whatever you do DON'T buy the the lightning models for 120hz they dont have dual link dvi. Have a look for the powercolor vortex ii they look really good and in the uk they are cheaper than lightning, vaporx and windforce models, that will probably translate to the us market
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post #20 of 138
And also HALF price of a 680 Lightning smile.gif
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