Just brought PMDG T7 for P3D and did a test flight. It worked good most of the time but In heavy airport, I got very strong shuttering. GPU-Z shows GPU load is 100% in demanding situation.

 

I currently have a 680 with 2Gb of ram. The card works well in fsx but I am not sure if P3D would get any better if i upgrade to...like 970 or 980?

Hi ,

 

i m thinking about the same thing as you , i have a GTX 680with a i7 3770K oc to 4.5 and thinking about upgrading to a i7 5820K ora 4790K and a GTX 980 .

 

Best regards ,

 

Gérard

What are your frames FlyCathay?

 

I used to run a 560Ti 1Gb which was @ 100% yet I was getting 30 fps (locked) smoothly.  I upgraded to a 970 (stock) and still get 30fps (locked,) smoothly, but at 40% utilitisation.  Look elsewhere for a cure for stuttering ... try turning off VSync if you haven't already done so.

Same here, 970 smooth but just around 40% utilisation....

OK, I turn cpu hyperthreading off and change affinity mask to 14. Now the shuttering problem seems to improve. 

Also try turning the airport scenery down to minimum/low settings as this is a huge hit on fps, as is high AI traffic.