Hi Masters of the tech world. 

I recently purchased a dell XPS 8930, 

http://www.dell.com/my/p/xps-8930-desktop/pd?oc=w21791249myw10&model_id=xps-8930-desktop

and unfortunately in malaysia im offered the choice of a i7-8700 variant, with a dissapointing 8 gb of ram and a nvidia gt 1030. As much as i love this computer, it is in need of serious upgrades to make it perfect. 

The problem is im a total amateur and thus i have absolutely no idea what is compatible with this computer should i upgrade. 

what graphics card is compatible with this device?

im thinking 1050ti to the 1080ti anything in between works. 

also i want to upgrade my ram to at least 16 gb.

If you are reading this and can help me please do. 

Thanks for your time and patience and have a great day :)