hi i'm a new person,in here, i have a plan to upgrade my PC, this pc is very old acer aspire mc605 with standard spec, intel core i5 3350p, nvidia geforce gt 625, motherboard intel h61 with 8gb ram, and 200 psu, i want to upgrade the vga to nvidia gtx 1050ti and change the psu into 450/550 thermaltake brand, what you guys think? one more question, i'm going with msi nvidia 1050 gaming x 2g, but i don't know if my DDR3 RAM is compatible with GDDR5 graphic Ram type., any help is welcome.