guys i want to buy a GFX card. And i am thinking to buy MSI GTX 560ti twin frozr ii OC 2gb ddr5. my bugdet is around 18000 rupies. can I play any game on ultra high in this GFX. my pc config is not so good and i have intel core i-3, DH55PJ motherboard, 4gb DDR-3 ram and ATI radeon HD5450 1gb ddr-3 graphics card. plz suggest me. I live in Bangladesh