As already said by my colleagues, the first image is made from realview, with the calculated shadows and ambient occlusion that you don't have in 2012. If these features are not available on your computer, it is because your graphics card does not support it.
@+
Edit: by the way, when you look at your graphics card it's a Gamer card not a professional 3D card so nothing surprising
To be a little more precise, the real view is a function that can be activated in solidworks normally that if you have an NVIDIA QUADRO style Pro card, I don't know the equivalent at AMD... Otherwise you don't have access to this function.
If you don't have a pro card, you can divert the throttling by using the "realhack" file as mentioned @Bart in his link, there are other links in his also quite a bit leading you to the Grabcad site...
Even a Quadro 1000 is RealView compatible, but that said personally I don't use it more than that just from time to time to have a quick overview because it takes resources and the more complex your assembly is, the more it will bring back ...:) Otherwise I find that you have very little RAM, 4 GB for design and rendering it really seems to me to be the minimum stict ...