go to tomshardwareguide.com and read their reviews. There are literally hundreds of graphics cards and laptops to suit your needs and budget. The real question is what do you intend on doing.
If playing games, then you will need a high end card and system. If productivity, integrated is just fine and most laptops are integrated.
If something in between, then a mid to high end laptop may fit your need.
I'm partial to NVIDIA, but ATI is also good.