Peter2k, on 04 October 2013 - 09:20 PM, said:
Driver problems, it's that simple, I'm quite sure
Deinstall all nvidia drivers manually and install latest driver
I get up to 90 fps, and low 50's to high 40's in heavy combat on my gtx 780, standard variant, not overclocked (but my i5 is)
Also like Tarl Cabot said, preference maximum performance in energy options and nvidia settings
I have every setting on very high in MWO, and all settings in driver section on best looks too (including AA, not that it works in MWO)
Resolution is 2560x1080
Also it might help to delete the shader cache folder of MWO in the user folder, or maybe even reinstalling MWO
Got problems a few months ago, and they there gone after reinstalling MWO(repair didn't help)
It's not a driver issue, as I'm running the latest ones released just a few days ago.
The shader cache has already been deleted.
From testing, it appears that it has something to do with the "effects" setting in the graphics. I can run with everything maxxed, but with effects low, and it runs at a perfect 60 fps at 1680x1050.
However, if I bump up the effects settings, to very high, then what happens is that a game will start at 60 fps, but after a minute or two something collapses behind the scenes and the framerate drops to sub thirty.
It's nothing so simple as "old drivers". I suspect it's more related to the fact that the cryengine 3 has some issues with kepler based NVidia cards, mainly focused on DX9 I believe. It's possible that DX11 may fix this, or even perhaps just upgrading the cry engine may fix it (I'm not sure if MWO is running on the newest stuff right now), as similar issues were reported with the GTX 670 against the Cryengine 3 (not within MWO, mind you) last year.