acer vn7-591g

Hello, I want to decide whether to get the MSI GS60 or the Acer VN7-591G. Both have almost the same specs(UHD, etc) and same price. The only difference is the MSI GS60 has GTX 960M with 2GB, while the Acer VN7-591G has the 960M with 4 GB. So I don't know about how much VRAM is needed etc. I...