TheTGDE

I don't think it's the PSU since games like battlefield 3 run just fine. I've also made sure that there are no extra processes running while fsx is running. I have not changed any ram settings like timings from the BIOS. How would you suggest changing these settings with an ATi card as there is no program like "Nvidia Inspector" that I could use. Changing AA from Catalyst Control Center did not seem to have any effect and there is only one option in FSX.

Oh well, might of gained like 2fps with these tweaks. RAM memory usage is about 3gb and VRAM at about 700mb while playing FSX. Only one of the 4 cores is fully used and the rest are at about 30-40% usage. Nothing seems to work and I have tried several tweaks like external frame limiter and shader mods, but no luck :I

Yes, I have it exactly like above, but no increase in fps. Also I have tried the shader mod 3.0 for ATi graphics cards, but didn't see that helping either. I guess there is nothing really left to do and I'll have to use another plane than the PMDG, since I find 10fps unplayable :( I had FFTF at 0.33 and changed to 0.1, but no changes in performance there.

thanks for your reply, but I had previously already applied most of those .cfg tweaks and so they didn't really help. Turning off AI traffic gives a few extra frames, but I really like the AI traffic so I want to keep it on. Also my video card is not the best, but it does not even get up to 50% usage while playing so that should not be the issue. I thought that I could try overclocking the processor a bit more, but would that really help when the processor is not really in full use even at this stage? Anyways thanks for your input!

So i just got a new new CPU (i5 3570k) and i thought i would test it in FSX. I loaded the PMDG 737NGX and JFK airport and I was getting 10-15fps in the cockpit view. I have definitely seen other people getting higher performance than this, with these processors so what could be my problem? The detail level in FSX was "very high", but the scenery was default so the fps seems quite poor to be honest. I also tried overclocking to 4.2ghz, but no improvements there. Any help appreciated. PC specs: i5 3570k @4.2 ghz MSi Z77 motherboard ATi Radeon HD 5850 @860/1200 GX 650W psu 8GB ddr3 ram 7200rpm HDD