I'm about to buy Lenovo G50-80 laptop?

It has 5th gen i5 processor,4GB DDR3 RAM, 2GB AMD Radeon R5 230M graphics card and 1TB HDD. Is this suitable for the following softwares?
1.AutoCAD Standalone (Basic and Architecture versions)
2.SketchUp Pro
3.Autodesk 3DS max
4.Rhino with grasshopper
5.Lumion renderer
6.Vray plugin for SketchUp, 3DS Max

Yes. More than suitable.

Of course! Since it has a good graphics card and a fast cpu

You may find in the future you might want to up the ram to 8gig…