I recommend you to go for a i3 or a i5 model with ample amount of ram (read 8gb atleast) as its required by compilers and IDEs. These modern day Intel chips have great on processor graphics from the 4th generation onwards. read more
I have repaired laptops for over 12 years and most of the laptops that failed before its expected life were the ones with graphics card. And the failing component was the graphics card indeed. Unlike PCs, you cant replace just the graphics card on a laptop. read more
Graphic card chipsets are made by 2 companies, AMD and Nvidia for gaming and rendering purposes. Without integrated graphics or a graphic card installed in your laptop or PC, every video would stutter and the FPS would not be above 30. This gives a laggy effect while watching 720p and 1080p videos. read more
The graphics card's GPU has its own memory, called Video RAM. It serves as a temporary holding area for video data as the GPU generates each image. Because the graphics card doesn't need to share memory with the main processor, VRAM improves the computer's overall performance. read more