lenovo g50-70

I bought Lenovo G50-70 7110 without any research. Now i found out that AMD graphic in this laptop is of no use. Even the Intel HD 4400 Graphic is better than that. So if you are buying it for normal use then ok, but don't buy it because of AMD graphic. Better to go for laptop without dedicated...

Guys i wanna upgrade 4GB RAM in my laptop. Which brand Should I go for and from where should I buy it? (Description of RAM - 1600MHz, DDR3L, 4GB)