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Recent huge FPS drop in sc2.

Last response: in Graphics & Displays
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April 1, 2012 9:04:58 PM

System
i5 760 @ 3.8 ghz
radeon hd sapphire 6850 o.c. 900/100
8gb ddr3 1600 ram
1tb sata 3 hd.

I used to play sc2 on extreme settings.

Then all of a sudden, if i go to ultra or extreme, i get over a 50 fps drop.

but if i switch both terrain and other graphic mode to high, i'm back up to steady 60 fps.

I don't know why this happened, or what i can do to fix it. I tried reinstalling video drivers, with a full manual uninstall, from amd support site.


Looking for opinions, ideas, or other people who have the same problem and know how to fix it.
April 1, 2012 9:40:13 PM

haved you backed to older drivers to see if that makes a difference?
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a b U Graphics card
April 1, 2012 10:29:09 PM

sounds like vram issue, try resetting gpu memory clock to default
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April 2, 2012 4:41:16 AM

I reset to stock gpu settings and still same problem.

I do note that now, i've narrowed it down to two settings that really mess me up
The texture quality has to be on high. if i put it to ultra, and all other setings on very lowest, i still get a 50 fps drop. As well the shaders on high, if on ultra and every other option very lowest, i still get 50 fps drop.
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April 2, 2012 4:53:04 AM

1920x1080 resolution and HD monitor with HDMI cable, (i'm not sure if 1080p) is harder on GPU.
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