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Amd radeon hd 6870 low performance

Last response: in Graphics & Displays
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September 12, 2011 1:52:39 AM

computer specs: AMD phenom ii 955 BE 3.2GHz
Mushkin enhanced 2x2gb 1333 Mhz
XFX radeon hd 6870 (stock clocks)
Msi 870 g-45 mobo
Vissiontek 500w PSU

Hello everyone, I am getting lower than expected fps in games that I am playing with my 6870. In Crysis with very high settings, no AA and 1980x1080 res I am getting only around 30 fps and it drops to below 30 often. In Crysis 2 I get around 40fps and it drops to around 30 on hardcore settings 1080p without the dx11 or texture pack. Benchmarks for my card show alot more fps in these games. I have the latest drivers for my graphics card and the games are updated by steam. What could be causing the low fps? I was thinking maybe the psu or the cpu.
September 12, 2011 2:00:37 AM

You should try O.C.ing your processor.

I have the same setup except that my 965 is at 3.8ghz.I remember playing Crysis 2 back in the Demo and i was getting 55+fps.
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a b À AMD
September 12, 2011 2:12:08 AM

more ram. also, for crysis 1/warhead, right click on the icon and select "run in DX9 mode". you wont notice any difference visually but it will run a hell of a lot better. OC'ing the processor may help. To determine a CPU bottleneck, drop the graphics detail/resolution down, taking the load off the gpu and more on the CPU, if you see no or little performance increase, then you have a cpu bottleneck.
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September 12, 2011 2:12:31 AM

I run my 925 @3.3 and get marginally better framerates in dx11. Granted I have a better gpu but there might be an issue there. Look into tour ram as 4g is a minimum for gaming as well as your psu. Sorry I don't have an immediate fix, but this should give you a fair comparison
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September 12, 2011 2:56:01 AM

On another note try your settings in CCC. Enable them to let the 3d app decide or try performance settings as well. When I had ATI, I found that CCC conflicted with programs often, so that might be an issue
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September 12, 2011 3:09:00 AM

you say benchmarks for your card show more fps, but these benchmarks are more likely conducted with an i7 cpu. that cpu (955 BE) is a bottleneck, I've owned one and I know. Try raising the multiplier to 19 which should give you 3.8ghz. Also try maybe looking into getting a decent brand name psu
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a b À AMD
September 12, 2011 9:14:14 AM

oh, i didnt even notice the psu lol, that is a piece of crap, remove it before your computer blows up. heres a review of a visiontek 700w unit http://www.hardocp.com/article/2011/09/01/visiontek_700... a 700w visiontek unit couldn't even produce half of that power within ATX specs. So your 500w unit is probably doing 250w realisticly which is not enough. replace your PSU before you damage the rest of your system.
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September 12, 2011 10:18:17 PM

iam2thecrowe said:
oh, i didnt even notice the psu lol, that is a piece of crap, remove it before your computer blows up. heres a review of a visiontek 700w unit http://www.hardocp.com/article/2011/09/01/visiontek_700... a 700w visiontek unit couldn't even produce half of that power within ATX specs. So your 500w unit is probably doing 250w realisticly which is not enough. replace your PSU before you damage the rest of your system.


Ya, I really should have spend more for a decent psu, I've been getting hyperthread sync flood errors lately do you think that could be caused by the psu not giving enough power to the cpu?
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September 12, 2011 11:43:26 PM

I don't think the 955 has Hyperthreading?
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September 13, 2011 12:27:58 AM

purple stank said:
I don't think the 955 has Hyperthreading?

Srry, I meant hyperTRANSPORT sync flood error
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September 13, 2011 12:34:19 AM

That could be a BIOS problem.Try looking up your mobo on MSI's site and see if their's a BIOS update relating to that issue.Otherwise it probably is a PSU.
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