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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1604

post #16031 of 38701
Quote:
Originally Posted by Mazel View Post

Just got my 7970 Vapor-X Ghz, decided to compare it to my 7950 Vapor-X clock per clock. And it pretty much reconfirms what we already know.
7950 Vapor-X 1070/1600

7970 Vapor-X Ghz 1070/1600

7970+7950 in Crossfire 1075/1575

Temps rarely shot above 62C in Crossfire, VRAM/VRM stayed around 65C. It may be that the cards are mounted at a 90 degree angle, but man do these cards run nice and cool.

I decided to test my results to see how my single 7950 would perform.

Here are my results with my 7950 OC Dual-X 1200/1450:



The core speed of your card is slower but if I wanna reach your score I have to overclock the card to at least 1150mhz

I just can't get the memory that high! I can run BF3 perfectly with the memory @1550 mhz with the voltage at 1650 a 50mv increase,but in heaven for some reason it always crashes in the stage 21-22 but only because of the memory.

On the other hand,the core can run at 1200mhz and the voltage 1175mv without a single problem,the temperature stays always under 75ºC with the fans set to 93%.

Now I'll try if I can reach higher speeds with the core.

Considering that my Phenom II x6 is considerably worse than your i7 I think my result is pretty good.smile.gif

Next Tuesday I'm getting my second 7950 dual-x and by then I'll benchmark it against your cf score.biggrin.gif

Thanks for publishing them so I can now see how my system compares to others with similar settings thumb.gif.
Edited by PcG_AmD - 9/21/12 at 1:15pm
 
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post #16032 of 38701
Need help guys.

Recently bought the Lightning 7970 but I'm having a monitor signal problem. After shutting my PC off for sometime and then turning it back on, I get no signal. Repeatedly turning it on and off wakes it up but I'm contemplating replacing the card if I am unable to resolve this. I've had other 7970s and a 7950 on the same board and same PCI-E slot with no problems and so I doubt it is a faulty motherboard / slot. I thought it could be my monitor but switching the DVI cable to integrated graphics works just fine and so it can't be the monitor. I've tried flashing the motherboard to the latest bios and the problem still persists. I've also tried Catalyst 12.7 and 12.8 and still no luck. Specs are in signature rig. Suggestions? I've had terrible luck with 7970s mad.gif Seriously considering the switch to Kepler 680
post #16033 of 38701
Quote:
Originally Posted by PcG_AmD View Post

I decided to test my results to see how my single 7950 would perform.
Here are my results with my 7950 OC Dual-X 1200/1450: Warning: Spoiler! (Click to show)
The core speed of your card is slower but if I wanna reach your score I have to overclock the card to at least 1150mhz
I just can't get the memory that high! I can run BF3 perfectly with the memory @1550 mhz with the voltage at 1650 a 50mv increase,but in heaven for some reason it always crashes in the stage 21-22 but only because of the memory.
On the other hand,the core can run at 1200mhz and the voltage 1175mv without a single problem,the temperature stays always under 75ºC with the fans set to 93%.
Now I'll try if I can reach higher speeds with the core.
Considering that my Phenom II x6 is considerably worse than your i7 I think my result is pretty good.smile.gif
Next Tuesday I'm getting my second 7950 dual-x and by then I'll benchmark it against your cf score.biggrin.gif
Thanks for publishing them so I can now see how my system compares to others with similar settings thumb.gif.
Yeah, that 7950 is running at .987V. If I could unlock the voltage, I could easily see upwards of 1200/1600 on it. Waiting to see if MSI can get Afterburner working with the new Boost cards before I flash on my 7970 Bios. I just don't like the fact that it's running 1.200V. But I don't think it'll be much of a problem as they pretty much share all the same components besides the GPU. Otherwise I'd love to see how two 7950s do in crossfire, shouldn't be far off my score.
post #16034 of 38701
My card came at 1.2v stock and I was able to go to 1175/1650 without touching voltage. Haven't messed with it much but thought that was pretty good for initial overclock. Never go above 50 degrees playing BF3.
 
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post #16035 of 38701
Quote:
Originally Posted by Bruennis View Post

Need help guys.
Recently bought the Lightning 7970 but I'm having a monitor signal problem. After shutting my PC off for sometime and then turning it back on, I get no signal. Repeatedly turning it on and off wakes it up but I'm contemplating replacing the card if I am unable to resolve this. I've had other 7970s and a 7950 on the same board and same PCI-E slot with no problems and so I doubt it is a faulty motherboard / slot. I thought it could be my monitor but switching the DVI cable to integrated graphics works just fine and so it can't be the monitor. I've tried flashing the motherboard to the latest bios and the problem still persists. I've also tried Catalyst 12.7 and 12.8 and still no luck. Specs are in signature rig. Suggestions? I've had terrible luck with 7970s mad.gif Seriously considering the switch to Kepler 680

What bios is on your 7970 Lightning? Is it a Ghz Edition Lightning?

Here's mine: (non-Ghz)

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post #16036 of 38701
Quote:
Originally Posted by spinejam View Post

What bios is on your 7970 Lightning? Is it a Ghz Edition Lightning?
Here's mine: (non-Ghz)
Box says GHz Edition so I assume it's not the non-GHz
post #16037 of 38701
Here is my bios if you'd like to try it.

7970L.zip 41k .zip file
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post #16038 of 38701
Quote:
Originally Posted by Bruennis View Post

Need help guys.
Recently bought the Lightning 7970 but I'm having a monitor signal problem. After shutting my PC off for sometime and then turning it back on, I get no signal. Repeatedly turning it on and off wakes it up but I'm contemplating replacing the card if I am unable to resolve this. I've had other 7970s and a 7950 on the same board and same PCI-E slot with no problems and so I doubt it is a faulty motherboard / slot. I thought it could be my monitor but switching the DVI cable to integrated graphics works just fine and so it can't be the monitor. I've tried flashing the motherboard to the latest bios and the problem still persists. I've also tried Catalyst 12.7 and 12.8 and still no luck. Specs are in signature rig. Suggestions? I've had terrible luck with 7970s mad.gif Seriously considering the switch to Kepler 680

Do you have hibernation disabled for your SSD? Also is your cable in the correct port in your graphics card? Other than that you should go with Catalyst 12.8 because its the latest driver. Good luck.
post #16039 of 38701
Quote:
Originally Posted by Mazel View Post

Yeah, that 7950 is running at .987V. If I could unlock the voltage, I could easily see upwards of 1200/1600 on it. Waiting to see if MSI can get Afterburner working with the new Boost cards before I flash on my 7970 Bios. I just don't like the fact that it's running 1.200V. But I don't think it'll be much of a problem as they pretty much share all the same components besides the GPU. Otherwise I'd love to see how two 7950s do in crossfire, shouldn't be far off my score.

I'll know next tuesday can't wait.

I have to make a correction in my post though,I was running the card at 1175mv but after running the test again I got almost the same score but I could see a lot of artifacts,It's the first time I experience them but I'm sure it was probably because of the high voltage.The more I increased the voltage the more frequent were the artifacts the screen flickering a lot and the sunlight in the benchmark was violet sometimes,I got a little worried.
Then I tried to run the test with the voltage at 1156mv,I could see less but I could still see them.The only reason I was setting it to 1156 was because that is what sapphire trixx detectes as my stock voltage when I click reset but apparently trixx is wrong because every time I run BF3 with those voltages @1200mhz after 20 minutes I start experiencing those artifacts again and 10-15 minutes later the display driver stops responding and when that happens the core voltage resets to 1056 and not 1156.If I don't open trixx and only open afterburner then it detects that my stock voltage is 1056,so all this time I was running a much higher voltage than needed and stock voltage was actually 1056mv.
I set the voltage to 1135 and then the artifacts were gone completely and the test run perfectly hitting almost the same fps 49.
I'll see how BF3 runs now.
Quote:
That's quite low! My factory-overclocked Sapphire Dual-X voltage is 1.174V according to Afterburner. I definitely don't think it needs that much for a low factory overclock.

ElevenEleven has the same card I have and his voltage was even higher,I don't get it I don't really know what the stock voltage of my card really is.
 
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post #16040 of 38701
Quote:
Originally Posted by PcG_AmD View Post

I decided to test my results to see how my single 7950 would perform.
Here are my results with my 7950 OC Dual-X 1200/1450:

The core speed of your card is slower but if I wanna reach your score I have to overclock the card to at least 1150mhz
I just can't get the memory that high! I can run BF3 perfectly with the memory @1550 mhz with the voltage at 1650 a 50mv increase,but in heaven for some reason it always crashes in the stage 21-22 but only because of the memory.
On the other hand,the core can run at 1200mhz and the voltage 1175mv without a single problem,the temperature stays always under 75ºC with the fans set to 93%.
Now I'll try if I can reach higher speeds with the core.
Considering that my Phenom II x6 is considerably worse than your i7 I think my result is pretty good.smile.gif
Next Tuesday I'm getting my second 7950 dual-x and by then I'll benchmark it against your cf score.biggrin.gif
Thanks for publishing them so I can now see how my system compares to others with similar settings thumb.gif.
Here is my score for more comparison with two HD 7870 at 1125/1350.
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