Problem with radeon hd 7850

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xbob627

xbob627

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Aug 1, 2012
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I have a AMD 5800k overclocked to 4.2ghz and patriot ram clocked at 1866....I had a evga gtx 550 ti and it was smooth , but the detail was not there. I went ahead and bought a sapphire radeon HD 7850 2GB OC card.....Before I was able to play far cry 3 at mid settings.....also GTA IV at high settings. I tried my brand new card and its kinda just not performing the way I thought it was going to......on far cry its practically not playable....the frames and so crazy when I look left to right or fire my gun it almost freezes or becomes super laggy. I tried different drivers but still runs like crap. Same thing goes for GTA IV I can run other games like Bio Shock Infinite smooth enough but when I run into certain areas the frames drops or becomes laggy for a half a second then returns back to normal. Can anyone please tell me if I have something wrong with my card so I can RMA it.
 
Solution
stickmansam
Try removing the drivers completely then re installing
Also mess with the in game settings

Download Sapphire Trixx and set powertune to +20, it may be the card is down clocking itself when it tries to draw more power than it's bios will allow it to. Happens sometimes with factory OC cards that did not tweak the bios properly. I had this issue after my own OC, changing power tune fixed the problem

Run GPUz while in game and have it refresh while playing. then right after you see a drop in frames, drop out to GPUZ and see if there was a drop in clcok speed right about then

Something like the dip near the end in the gpu clock line

gpuz.png

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xbob627

xbob627

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Aug 1, 2012
76
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GPU Core Clock: 920
GPU Memory Clock: 1250
GPU Temperature:47°C
Fan Speed: 36%
Fan Speed RPM: 1886
GPU Load: 51%
Memory Usage (Dedicated): 788
Memory Usage (Dynamic): 99
VDDC: 1.210
 
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stickmansam

stickmansam

Splendid
Oct 30, 2011
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Try removing the drivers completely then re installing
Also mess with the in game settings

Download Sapphire Trixx and set powertune to +20, it may be the card is down clocking itself when it tries to draw more power than it's bios will allow it to. Happens sometimes with factory OC cards that did not tweak the bios properly. I had this issue after my own OC, changing power tune fixed the problem

Run GPUz while in game and have it refresh while playing. then right after you see a drop in frames, drop out to GPUZ and see if there was a drop in clcok speed right about then

Something like the dip near the end in the gpu clock line

gpuz.png

 
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Solution
xbob627

xbob627

Honorable
Aug 1, 2012
76
0
10,630



set powertune to +20....I have sapphire trixx.....how to I do that....are you saying to drop the voltage ?
 
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xbob627

xbob627

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Aug 1, 2012
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Ok the lag seems to be more of skipping now that I look at it now....I am using the newest driver from AMD.....The core clock remained solid....there wasnt any dips in the clock speed while I was playing for a few minutes.....even though it was playing horrible.
 
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