Dell customizes your drivers and updates are usually never needed. Here's the support page for your model with the right drivers--

https://www.dell.com/support/home/us/en/04/product-support/product/inspiron-14-3443-laptop/drivers 

You cannot change your video chip on the motherboard.

Can i change to other match graphics card if yes which?

I wanna say to you that the driver that named there is crashing to me and not good for nvidia geforce 820m