Compare Microstation V8i Select Series 4 and Series 10

What is the best source/information to compare Microstation V8i Select Series 4 and Series 10?  I use CAD for 3D Modelling, visualisations as well as basic drawing tool as a sole practitioner architect, practically no teamwork.  Any further advice will be welcomed.  I will have to choose soon between 4 and 10 soon.