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HD 7990 performance problems.

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17 Mar 2015
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8
I recently upgraded from a HD 6850 to a HD 7990 and so far the upgrade feels more like a downgrade. I get microstutter in almost all games, even if crossfire is disabled. Some games I am also getting terrible fps, for example metro last light, I dont really play this game so its not too much of a problem but I should be able to run the game on high settings getting atleast 60fps but i get about 20fps. From all the games I have tested the only game that doesnt get microstutter is saints row the third and i have no idea why. I cant even play league of legends, the stutter every second is incredibly irritating. The games it chooses to run fine seem to be random. I went through all my games changing graphic settings, making profiles in ccc and trying the afr friendly option, 1x1 optimising and tried disabling crossfire for some games but still get microstutter. I have the latest omega driver so I dont think it could be driver related. I dont think its a temp issue, the card goes to about 85-90 under load. Something I have noticed is in the msi afterburner osd thing even if i disable crossfire it still shows the second gpu as being at the same usage % as the first.

The games I have tested: assassins creed 3, batman arkham origins, borderlands 2, borderlands pre sequel, bioshock infinite, cod advanced warfare(for some reason it says that only 2000mb of vram is detected and it autos to medium settings),cs go,skyrim, far cry 3, gta 4, metro last light, nether, saints row the third, titanfall, battlefield 3, civ 5, sleeping dogs, thief and the witcher 2. Some of the games run fine highest settings but I get microstutter and some run terribly and i get low fps.

Specs: FX 8350 OC 4.4ghz(I only OCd to see if it fixed the performance issues but it didnt), 16gb corsair ddr3 1600mhz, msi 970 gaming, corsair tx750, 1 samsung 1tb hdd, 1 Western digital 1tb hdd(no raid).
 
I run the 14.9 drivers on my 7990 and it runs well. Sounds like you've done much fiddling. Disble ULPS in afterburner. Afterburner itself can cause problems. Shouldnt need to disable Xfire to et most of those games running.

Sounds like it didnt install properly especially with only seeing 2GB ram in one game. I'd run the latest version of DDU and try the 14.9's. Freinds who have 7 series cards had stutter and using teh 14.9's cured it for them. This was in BF4.

I havent even tried the Omega drivers as 14.9's are solid.
 
<snip> Something I have noticed is in the msi afterburner osd thing even if i disable crossfire it still shows the second gpu as being at the same usage % as the first.<snip>

This happens if you have "Enable unified GPU monitoring" enabled in Afterburner - it seems to just monitor GPU1 and assume GPU2 is running the same. This is because sometimes ULPS can make monitoring GPU2 problematic, although AfterBurner has never had a problem monitoring GPU2 on my system. Try disabling this option in Afterburner and see if that fixes the OSD issue.

<snip>Specs: FX 8350 OC 4.4ghz(I only OCd to see if it fixed the performance issues but it didnt), 16gb corsair ddr3 1600mhz, msi 970 gaming, corsair tx750, 1 samsung 1tb hdd, 1 Western digital 1tb hdd(no raid).<snip>

You mention going from a 6850 to a 7990, but your specs list an MSI 970? I'm confused (appropriate, given my username!), is the 970 in your system for PhysX or another reason, or was this an error in the specs listing. Just wondering if any Nvidia driver presence could be causing any weird issues?
 
When I got my 7990 the only way to get it working well was to completely reinstall Windows and then just install the AMD driver.

Even upgrading drivers broke things again so I had to reinstall completely all over again.
 
You mention going from a 6850 to a 7990, but your specs list an MSI 970? I'm confused (appropriate, given my username!), is the 970 in your system for PhysX or another reason, or was this an error in the specs listing. Just wondering if any Nvidia driver presence could be causing any weird issues?

Pretty sure the MSI 970 refers to the am3+ motherboard ;)


Definatly reinstall afterburner,it doesnt like it when you change GPU's with out uninstalling it first,will give you all sorts of crazy readings
 
Sorry for not clarifying, I meant MSI 970 Gaming Motherboard. I didnt have msi afterburner installed before changing cards. I will try the 14.9 drivers, id rather not reinstall windows as I only did it a week ago when i got my new mobo.
 
When using DDU (of course make sure you have the absolute latest version)... I reboot in to safe mode. Then I click on the tab that makes it remove all the drivers but NOT restart. I will actually do this twice, THEN click on the Remove drivers and restart tab. Then before installing new driver I go in to c: and make sure the AMD folder is deleted. If not then remove that sucker.

THEN install the drivers (custom) and make sure to unclick the Raptr crap.

Restart. Open up MSI afterburner and click on "disable ulps". Restart PC again

Come back in and try the games as is just like that. With the issues you're experiencing it truly sounds like the driver is not proper installed/ corrupted. I've had similar problems with xfire before and hence forth have starting using this method for drivers.

Hope it helps.
 
If you have 3dmark Firestrike that is the first and quickest test I use to know if xfire is working properly before opening up a bunch of games and all. If the Firestrike Ultra scales well then I can focus on each game. I had 3 x 7970's and even back then I had no real scaling or stutter issues. BF3 was amazing on that setup at 1440p :D
 
OK Im not at home until tomorrow so will try it then, I will try with omega drivers and if it doesnt work then i will try 14.9

I will also try firestrike.
 
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Pretty sure the MSI 970 refers to the am3+ motherboard ;)

Sorry for not clarifying, I meant MSI 970 Gaming Motherboard.

Cheers guys - made an assumption and got it wrong. Apologies for potentially muddying the water in the thread. Hope you get it sorted OP, the 7990 should be a card that brings a smile to the face, not a frown. Good luck. :)
 
As mentioned previously if all else fails reinstall windows.

The 7990 is a great card and will eat most games for breakfast.
 
I updated the drivers on my 7990 in about November last year. I had no end of problems after that. PC crashing, games stuttering. It was awful.
It ran like a dream if I reverted back to the old drivers though so I did that for a bit. After 3 new drivers (said to fix the issues with the 7990) I decided to sell it.
I have since spent a fortune on graphics cards. 2x 970's, 2x 290x until finally settling on a 980.
I'd personally reinstall windows before trying anything else. As you've only recently done it then it's a bit of a pain but it doesn't really take that long. Maybe try installing windows on an old HDD if you have one spare?
 
I now have the 14.9 drivers and so far the games seem to be running better but I still get microstutter in most games and for some reason crossfire is enabled in all games even though I have the setting to enable it on games without a profile off. It seems completely random which games run OK and which dont. Crossfire should not be running in League of Legends but it is, I have the overlay to tell me crossfire is enabled and i get microstutter. I have to create a profile and set it to disable crossfire.
 
I flashed the custom bios and it got rid of microstuttering in some games but I am still getting it in some and I am getting low fps in some games.

That's just part and parcel of owning a dual GPU card I'm afraid. It will never work every time, all of the time.
 
I am getting low fps in a lot of games no matter what the settings so I am going to try reinstalling windows, do I have to format my drive or can I just do a reinstall? Will it make a difference do you think?

EDIT: Ok I just checked Unigine Heaven scores and I am getting roughly ~1400 when I should be getting ~3600.
 
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