Add-ons CPU/Resource Usage

Hello Guys;

I use Corei7 [email protected] with 8Gb RAM on 580GTX over dual screens.My fsx.cfg is tweaked via ******* tweaks and also latest Vsync ½ refresh rate advices.

Result is acceptable , Most of “must have add-ons” are installed, GEX,UTX,AS2012,… some sceneries from FSDT and Aerosoft and some great aircrafts by PMDG ,Level-D.

I already bought FSCaptain, FS flight keeper and Aivlasoft EFB but not always use them ,I am worry about CPU/Resource consumption by these 3 great utilities. For example I use Aivlasoft EFB just for Flight Planning and dispatching! Then exit and load FSX.

Any idea about effect of them on FSX? Resource usage? Effect on smoothness and frame rate?

I cannot recognize for example how many frame rates during approach on PMDG-NGX VC over KJFK (nighttime , heavy weather) may I lose because of them?

Regards