I have a pretty crappy pc, and want to reinvigorate its gaming performance with a graphics card. It currently has nvidia geforce 6150se nforce 430 integrated graphics, 256 mb. I hate it. It gets 10 fps average for portal 2, 5 fps when under heavy load, it gets 10-15 fps in counter strike source, max settings, in tf2 it gets 3-5, and in torchlight 2 gets only 20 fps lowest settings. I'd like to change this. My pc is an hp slimline with 220 watt psu, AMD athlon x2 250 dual core cpu, with 4 gb ram. I'd like to pick out a low profile video card that won't completely bottleneck my pc, will work on the psu, and play the games mentioned pretty well. Also, i'd like some room to grow, as in, be able to play some other games as well. I really need an answer, as indecisive me has been searching for 3 months. Thanks for any helpful response.
PS some graphics cards I've looked at include:
-ati radeon sapphire hd 6670
-ati radeon hd 6570
-nvidia geforce gt 430
-ati radeon hd 5450 (probably not this one, because its gaming performance doesn't look so good)
The games I'd like it to run smoothly, med to high settings:
-portal 2
-torchlight 2
-team fortress 2
-counter strike source
-left 4 dead 2
-garry's mod
-half life 2
PS some graphics cards I've looked at include:
-ati radeon sapphire hd 6670
-ati radeon hd 6570
-nvidia geforce gt 430
-ati radeon hd 5450 (probably not this one, because its gaming performance doesn't look so good)
The games I'd like it to run smoothly, med to high settings:
-portal 2
-torchlight 2
-team fortress 2
-counter strike source
-left 4 dead 2
-garry's mod
-half life 2