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is 116.4 fps good for x2 gtx 780's in sli on a 2560x1440 monitor using heaven benchmark ? - Page 2

post #11 of 31
Quote:
Originally Posted by orndorf77 View Post

my graphic card temperatures reached 80c on one card and 70c on another card are those temps safe ?

Yes, but at 80c your graphics card will start to lower its clock speed away from the boost clock to the base clock. That can cost you a fair amount of performance (think as much as 10-20%) as well as prevent overclocking as your cards won't clock up, so cooling them better could increase performance by a notable margin. It's quite normal though for multiple high end cards to run like that.
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post #12 of 31
Thread Starter 
Quote:
Originally Posted by Cyro999 View Post

Yes, but at 80c your graphics card will start to lower its clock speed away from the boost clock to the base clock. That can cost you a fair amount of performance (think as much as 10-20%) as well as prevent overclocking as your cards won't clock up, so cooling them better could increase performance by a notable margin. It's quite normal though for multiple high end cards to run like that.
my graphic cards did not hit those temps until towards the end of the benchmark test . and also I played assassins creed black flag for about a hour rite before benchmarking my cards . do you think playing assassins creed black flag rite before benchmarking had any thing do to with those high temps ? and also how can I better cool my graphic cards ? I all ready have a 200mm side intake fan blowing air on them . I have a space for a bottom 120mm intake fan but that will only cool the bottom card and the top card is the one that needs to be cooled better
    
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post #13 of 31
Quote:
Originally Posted by orndorf77 View Post

my graphic cards did not hit those temps until towards the end of the benchmark test . and also I played assassins creed black flag for about a hour rite before benchmarking my cards . do you think playing assassins creed black flag rite before benchmarking had any thing do to with those high temps ? and also how can I better cool my graphic cards ? I all ready have a 200mm side intake fan blowing air on them . I have a space for a bottom 120mm intake fan but that will only cool the bottom card and the top card is the one that needs to be cooled better

It usually takes only about 10 minutes to reach the point where temps don't get any worse

As for improving airflow.. That depends a lot on the case and available fan slots etc

Here's a 5-second mspaint i did a little while ago for the Air 540 case in the fan config of 1x 140mm rear top, 2x 140mm top, 3x120mm front



pci-e slot covers (those things blocking the bottom left of image) removed to allow for airflow out of them. Depending on the position of the fan slot etc, i was considering making the front top fan into an intake too, as example

with a pic of case and knowing available fan slots, you can maybe work out a better airflow setup, or try something new (it's ok now, just has the potential for improvement if you'd like)
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post #14 of 31
Thread Starter 
Quote:
Originally Posted by Cyro999 View Post

It usually takes only about 10 minutes to reach the point where temps don't get any worse

As for improving airflow.. That depends a lot on the case and available fan slots etc

Here's a 5-second mspaint i did a little while ago for the Air 540 case in the fan config of 1x 140mm rear top, 2x 140mm top, 3x120mm front



pci-e slot covers (those things blocking the bottom left of image) removed to allow for airflow out of them. Depending on the position of the fan slot etc, i was considering making the front top fan into an intake too, as example

with a pic of case and knowing available fan slots, you can maybe work out a better airflow setup, or try something new (it's ok now, just has the potential for improvement if you'd like)
the case I have is a thermaltake overseer it comes with a front 200mm intake fan a top 200mm exhaust fan and a 120mm rear exhaust fan by default I added another 200mm top exhaust fan and a 200mm side in take fan i also have a corsair h100i mounted on the top inside of my case with the x2 120mm fans as exhaust so i have a push pull config with x2 200mm fans and x2 120mm fans
    
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post #15 of 31
Quote:
Originally Posted by orndorf77 View Post

the case I have is a thermaltake overseer it comes with a front 200mm intake fan a top 200mm exhaust fan and a 120mm rear exhaust fan by default I added another 200mm top exhaust fan and a 200mm side in take fan i also have a corsair h100i mounted on the top inside of my case with the x2 120mm fans as exhaust so i have a push pull config with x2 200mm fans and x2 120mm fans

As a quick and easy experiment, you can have everything cooled down, then watch your temperatures with 10-15 minutes of unigine heaven with sli enabled - then give your cards/case 10 minutes idle, and take off the side of your case, repeat it and see if temperatures are significantly lower

if they are a lot lower, it means that your case is getting significantly hotter than room temp (or at least parts of the case)
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post #16 of 31
Just for a comparison I ran my single Gigabyte GTX780 using the same settings as you:

System:
1440p monitor
I5 3570k @ 4.8Mhz
GTX 780 50+ on core and 100mhz on memory
RAM: Corsair dominator Platinum 2133

Valley: 74.5 fps
Score: 3116

Min fps:34.0
max:139.0

Max temp of card during bench: 75 degrees.
post #17 of 31
Quote:
Originally Posted by wisecrack View Post

Just for a comparison I ran my single Gigabyte GTX780 using the same settings as you:

System:
1440p monitor
I5 3570k @ 4.8Mhz
GTX 780 50+ on core and 100mhz on memory
RAM: Corsair dominator Platinum 2133

Valley: 74.5 fps
Score: 3116

Min fps:34.0
max:139.0

Max temp of card during bench: 75 degrees.

That's a different bench (valley vs heaven)
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post #18 of 31
I see will try and run the correct one :-)

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post #19 of 31
Your temps are a bit high. As mentioned above, 80c is the point where the card starts to throttle itself. I would recommend setting a fan curve in PrecisionX or Afterburner.
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post #20 of 31
Quote:
Originally Posted by NitrousX View Post

Your temps are a bit high. As mentioned above, 80c is the point where the card starts to throttle itself. I would recommend setting a fan curve in PrecisionX or Afterburner.

It's kinda normal with multiple higher end cards, good idea on fan curve though totally slipped my mind

80c isn't throttle point, it's just "remove-gpuboost-and-overclock" point (which is still crucial!), i think throttle below base clock happens at like 94c
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