so i'm using HD 7770 now and i'm going to upgrade it to Nvidia and my choices is MSI GTX 660 Twin Frozr 3 or Manli GTX 660ti.
here's the thing
MSI 660 is priced around $240 and it has 2 years warranty, better build quality, cooler design, great aftersales, etc
Manli 660ti is $277 with 1 year...