Is a Polytech 675cc Extra high, a large implant? I currently have Mentor 325cc HP

Updated: I currently have 325cc High profile Mentor implants I would like a more fake look with good projection and volume. I’ve chosen to go with Polytech MeMe 675cc Extra high implants here are the measurements. A 13.8 B 13.8cm C 6.9cm D 10.5cm. Will I notice a big difference with these implants? I’m currently a bra size 32C/D. So any idea what size I could be if I go ahead with the operation please? Xx My chest wall measurements are 13cm and I have looked at 675cc extra high implants witch measures 13.8cm will these be big on me as I wanted the fake look?