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HD 6850 not working as well as it should

Last response: in Graphics & Displays
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August 31, 2012 2:03:16 PM

CPU: Amd Athlon II x4 640 3 GHz
4 GB RAM
PSU is 650W
Windows 7 64 Bit

I pretty much tried everything. Installed the latest drivers, closed up all other programs etc. but I still get low FPS with this card. Before it, I had an HD 5670 which could run Assassins Creed 2 at 1920x1080 at a stable 30 FPS or Crysis at 20-25 FPS on high settings. I decided to upgrade because I wasn't getting a stable 30 FPS in Gta IV. And now, for some reason, GTA doesn't run any better ( I would actually say it runs worse) and Assassins Creed goes below 30 FPS a lot more than before. My friend who owns a computer shop tested it and said that everything seems to be working correctly and that there seems to be no bottleneck. I honestly don't know what to try anymore. I know the card should perform better and not worse than my previous card. The weird thing is, even if I change the resolution from 1920x1080 to 1280x720 the FPS stays the same. If anyone has any idea what could be the problem, any help would be appreciated. Thanks.

More about : 6850 working

August 31, 2012 2:24:53 PM

There is no bottleneck, your friend is right.

You must have changed some settings or something, or maybe you didn't remove your previous drivers and install the latest ones.
August 31, 2012 2:38:51 PM

Did you connect 6-pin power connector from your power supply to your graphics card?

Did you connect the monitor to the motherboard or to the graphics card?
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August 31, 2012 2:42:02 PM

Sunius said:
Did you connect 6-pin power connector from your power supply to your graphics card?

Did you connect the monitor to the motherboard or to the graphics card?


Yeah everything is connected and "seems" to be working properly, but in games I get lower than normal FPS.
I've also tried deleting my old drivers and installing new ones but it didn't make a difference.
The strange thing is, the performance seems to be exactly the same as the HD 5670 I had about a year ago, which should not be happening.
August 31, 2012 2:43:33 PM

I repeat my question:

Did you connect the monitor to the motherboard or to the graphics card?

An answer should not be "Yes" or "no".
August 31, 2012 2:52:26 PM

Sunius said:
I repeat my question:

Did you connect the monitor to the motherboard or to the graphics card?

An answer should not be "Yes" or "no".


Do you think I'm stupid or something?
Yes of course I've connected it, I wouldn't be seeing a picture if I didn't.
August 31, 2012 2:58:17 PM



I asked what it is connected to!
August 31, 2012 3:12:38 PM

Okay thanks for clarifying it.

I saw 4 problems exactly like this one during my time on this forum:

Upgraded AMD card to AMD card, and the performance didn't improve.

The only solution that worked for all the people was windows reinstall. They all tried reinstalling drivers, trying driver deletion tools, but nothing helped. Until they reinstalled windows. Then, it was fixed.
August 31, 2012 3:17:29 PM

Reinstall windows 7 like sunius says..Install drivers 11.4 best for 6850 do not use newest..Install CAP even know you don't run x-fire it helps..
August 31, 2012 3:19:07 PM

Sunius said:
Okay thanks for clarifying it.

I saw 4 problems exactly like this one during my time on this forum:

Upgraded AMD card to AMD card, and the performance didn't improve.

The only solution that worked for all the people was windows reinstall. They all tried reinstalling drivers, trying driver deletion tools, but nothing helped. Until they reinstalled windows. Then, it was fixed.


Yeah I already tried reinstalling Windows but it didn't make a difference. I'll try again though. I think I know why it didn't work the first time.
August 31, 2012 4:14:57 PM

Monitor your GPU usage, temps, clock speed and voltage when playing those games. Check what your clock and memory speeds are in catalyst 300Mhz at 0.95V unloaded and 775 or 820Mhz at 1.15V loaded. Make sure the memory clock is under 1100Mhz Check and make sure your catalyst settings are not maxed out and check the "use application settings" box.
August 31, 2012 5:00:52 PM

Well I'm back with some updates and some bad news. Reinstalled Windows again, downloaded the 11.4 drivers, checked my settings in Catalyst, started a game, and no difference. So then I ran MSI Afterburner to check what my GPU usage is when playing GTA IV. I expected to get around 70 or something but turns out the average GPU usage was 33%, with the max being 57%. So obviously something's not right here. I'm pretty much out of ideas right now.
August 31, 2012 5:01:35 PM

Can you check CPU usage?
August 31, 2012 5:13:17 PM

CPU usage was generally between 70-80%. This is all at 1280x720 btw.
August 31, 2012 5:23:09 PM

You've found your issue I guess. What settings are you using for GTA 4?
August 31, 2012 5:27:05 PM

Sunius said:
You've found your issue I guess. What settings are you using for GTA 4?


Pretty much everything is around medium, with view distance really low.
I guess I should buy a new processor then.
August 31, 2012 5:29:21 PM

Try increasing the settings. The frames per second shouldn't go down, only the GPU usage should go up. Experiment with settings. Some settings are quite heavy on the CPU. Did you install any of GTA 4 patches? If you didn't, installing at least 1.0.4.0 patch should fix your problem.
August 31, 2012 5:34:29 PM

OK increased all the settings to high, and to my surprise the framerate didn't drop at all. It actually seems to maybe be 2-3 frames higher. Never had it on high since it was barely running on medium.
I guess it really is the CPU then.
August 31, 2012 5:40:45 PM

So did you install the patches? How many frames per second are you getting?
August 31, 2012 5:53:31 PM

Sunius said:
So did you install the patches? How many frames per second are you getting?


Already had the latest patch. Right now it's about the same as on medium with everything on very high, struggling to hit 30 FPS.
August 31, 2012 5:55:13 PM

I suppose you could overclock that CPU, it could help to overcome 30 fps barrier.
August 31, 2012 6:05:07 PM

nvk3 said:
Do you think I'm stupid or something?
Yes of course I've connected it, I wouldn't be seeing a picture if I didn't.


Wowzers....

August 31, 2012 7:17:05 PM

So your using MSI Afterburner and CCC? if you are they might be conflicting
August 31, 2012 7:27:56 PM

sheepsnowadays said:
So your using MSI Afterburner and CCC? if you are they might be conflicting


Well I installed it today just to check my GPU usage so I don't think it matters.
I'll try to overclock my CPU but seeing as I've never done that before I'll have to read up on it.
!