Hi Ahmed,
a very good combination of processors and graphic cards, I read this very often.
I am a little nosy on your fps. Do you have mega-airport EDDF, REX and the PMDG?
I am asking because I make my comparisons always in a standard situation in Frankfurt and rainy weather, at night.
My graphic card is almost the same, only with 2 GB.
My processor is an i7 980 X, 12 CPU's at all. The FSX needs only one with 8 to 12 % of performance. A big disadvantage is the loud cooling fan, but with the headset you dont hear it.
Greets
Tom