Welcome to the forums and AutoCad!

I am just expanding upon the last posters post with my own experience....

Surprisingly Autocad doesn't rely heavily on your graphics card. So I bet yours is fine. So long as your model is supported.

The RAM you have is low, I would avoid using other software while running AutoCad.  if you can upgrade RAM it will be worth it. Depending on your model it maf be inexpensive and easy to do.

The processor does most of the heavy lifting....so an i7 would be best. AutoCAD uses 1 processor at a time so the faster the processor the better.

If you do not have an SSD (solid state drive) opening and saving will seem slow...despite the hard drive SAVE OFTEN!!!!  

I have a 2010 macbook pro with an i7, an SSD, 8gb of ram and a 512video card.  On small/simple files it runs just as well as my fully loaded 2013 iMAC.  On large/complex files the 2010 MBP screeches to a hault.On my 2013 iMAC I run complex files containing alot of nested data.  It is not unusual for me to use 24gb of RAM. And 1 of my processor cores is usually maxed out.