How to get the list of graphic cards which I could use to replace GT 840M on my dell Latitude?

[Xirabella]

According to the title, I meant the one below.

http/www.dell.com/us/business/p/latitude-e7450-ultrabook/pd?ref=PD_OC

The reason for me to change the graphic card is that I'm not satisfied with its performance in providing dual monitor.

Or, maybe you have some better suggestions.

Thank you for your reply. ; )

 

[ak47jar3d]

The graphics is soldiered to board so it's not possible.