Your question is rather confusing because CAD Revit and 3D studio max are not graphic designer programs. In any case what you describe is perhaps a pc with high graphic capabilities and rendering capacity. Depending on your budget and because of the many possibilities here I would suggest you look for a mid range gaming pc try this website theyre good providers and as far as Im concerned they haven failed me before Gaming Laptops - XOTIC PC - Gaming Notebooks - Custom Laptops - Custom Notebooks Just a quick pointer Do not look for any pc below an i5 processor what you seem to need is that or above and 8316 gb of ram and because of 3D max perhaps a graphic card. I cannot give more details because honestly it depends on theplexity of work you will take; moreplex more stuff but these basic pointers should do good. Best of luck!