I've seen there's a difference in the gaming laptop pricing that comes with Nvidia GTX 1050 4GB DDR5 when compared against Nvida GTX1050 2GB DDR5.
Does 2GB of GPU RAM make much difference?

Example:

MSI GP62M 7DR-053 priced at RM3999 has Nvida GTX1050 2GB DDR5 and laptop comes with 8GB RAM
MSI GL62M 7RDX-1022 priced at RM4299 has Nvidia GTX 1050 4GB DDR5 and laptop comes with 4GB RAM
both are Intel Core i7-7700HQ only difference of 2MB cache, and both have same storage 128GB SATA + 1TB HDD, both 15.6".

Among these 2 MSI laptops, assuming with RM4500 cash on hand, which is more worth to buy to play decent games (e.g. Overwatch, Starcraft2, Battlefield, etc)?

How much difference does it make for GPU that has 4GB compared with 2GB?