I got a crash to CTD last week while flying KSAN to KJFK, in the PMDG 737NGX . It happened about 4 hours into the flight. My Intel 4820K is overclocked rto 4.8ghz; i have 16gigs of ram and a gtx780.
Do you have AI traffic installed???
Do you have a third party weather engine like REX running???
How about an add on aircraft like the pmdg 737 ngx???
These are well known frame rate killers!!!
I'm thinking about making the switch from FSX to PREPAR3D. However, I need to know what frame rates are like when running fully stocked.