SketchUp 2015 :- With the release of SketchUp 2015 we’ve removed support for Windows Vista, Windows XP and OS X 10.7 (Lion) and earlier. Please ensure that the video card driver supports OpenGL version 2.0 or higher and up to date.
3D class Video Card with 512 MB of memory or higher. Minimum hardware are 2.1+ GHz Intel™ processor.