Asking for selling price

[IReapeIN]

So i got me now a 980ti and have my old graphics card laying around. I wanna sell it but i dont have a clue what i sell it for.

It's this model: https://www.google.at/search?q=asus+gtx+780+directcu+ii&espv=2&biw=1536&bih=779&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi80oqr65TQAhXJtBQKHXQ2A8YQ_AUIBigB#imgrc=YkFdwn8fVA0VkM%3A

If anyone can help me out i would be very grateful.

 

[Gam3r01]

http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR9.TRC2.A0.H0.Xasus+780.TRS0&_nkw=asus+780&_sacat=0