Bioshock performance

[fornarmr]

I have a QX6850 running at 3.33ghz and 2 8800 Ultras running in SLI.

In DX10 Bioshock in Vista running 1920x1200 it feels like I am getting some choppiness. Shouldn't this game be running silky smooth? When I turn of vsync it seems to have no problems.

I have read that Bioshock has trouble with DX10 and SLI so that may be the problem. Does anyone have any insight into this?

 

[sam0t]

Last I heard Vista SLI support is somewhat flaky .. Throw in DX10 and you can expect trouble. Correct me if Iam wrong.

 

[dennab205]

make sure you have all these http://www.nvidia.com/object/windows_vista_hotfixes.html

also latest drivers http://www.nzone.com/object/nzone_downloads_rel70betadriver.html

also latest DirectX https://www.microsoft.com/downloads...38-db71-4c1b-bc6a-9b6652cd92a3&displaylang=en

 

[Brent_Justice]

You answered your own question, vsync off it runs fine. With VSYNC on it will switch between multiples of your refresh rate, if an LCD that means it alternates between 30 and 60 FPS, thus creating that feeling of lag or choppiness. Turning off VSYNC (or forcing tripple buffering) fixes that problem.