Nvidia Graphic Cards incorporating Shadowplay video recording

Hello,  For a long time I have been using FRAPS for recording aircraft landings etc. I recently bought a Nvidia 970 card and saw a program therein called Shadowplay which does much the same as Fraps but uses less power. I tried googling for help in using this programme but the providers in Utube for example were not too clever in describing the procedures.  I just wondered if anyone in the Forum had any experience with Shadowplay and if so, would they be so kind as to give me the necessary knowhow. I am 79years of age and still flying FSX with PMDG aircraft but cant get my head around this programme.  Many Thanks.  Richard Welsh.