Hello good peoole, kindly advise me , I'm to make a decision on either to purchase a hp z book 17 G3 or G4 workdtation, I've previously used a G3 with quadro M3000M before and it served me well, will it be better for me to try a G4 this time with quadro M4000M or the difference is negligible and not worth the cost, I use the laptop for drawings ,