okay so i am thinking about upgrading my video card
this is my computer rite now HP Pavilion Slimline s5118f Desktop PC (NY511AA) specifications - HP Home & Home Office Products
and this is the graphics card i wanna add. Newegg.ca - XFX HD-545X-YQH2 Radeon HD 5450 1GB 64-bit DDR2 PCI Express 2.1 x16 HDCP Ready Low Profile Ready Video Card
how much fps do u think i could possibly get a lowest settings at combat arms and is there any better graphics card i could get?