shadysam :
I mostly need the laptop for 3D designing and playing games nd d graphic cards are
AMD radeoan R5 M330 in HP
Nvidia Gforce 820M
Neither of those is good for games, they are both low end video chips.
For games, I don't suggest going lower than the nVidia 860m or 960m class of cards if you want decent results without feeling like you wasted money on a slow system. A 840m , 940m, 950m may do if you are OK with low settings, those will still manager to start most games but you will have lower frames and some may not play smooth (you'll see FPS drops, lag, etc...).
http
/www.amazon.com/Dell-Inspiron-i7559-763BLK-Full-HD-GeForce/dp/B015PYYDMQ...