Tell me about it evey time I try to tell people about the 550 ti it's like they don't believe me. I have two GTX 550 Ti's 1gb that are OC'ed and In SLI. In BF3 On low everything I only get 20 to 25 frps and after playing for a while it gets a stutter untill I cool them down.
In my opinion these were the worst 5xx series cards the Nvidia ever put out. Go with the 6870's you will be much more pleased with what they will do. Now the 2gb of Vram is only good for resolution over 1920 x 1200 or if you are going to run more than one monitor.
Now some where down the line you might want to do that but not on the 550's. Also some games out now and some coming out the extra Vram will come in handy. You might want to look into that a little bit more.
I can't believe how much they rip people off with that...
you also don't ever need 2 gb of memory with a 550 ti.
^+1. More memory doesnt make cards faster, it just allows them to store larger/more textures. But if your cranking details/draw distance/textures up to fill up more than 1gb vram, the 550ti wont be able to process all that fast enough anyway and still give you low fps. so 2gb ram is a total waste on a low-mid range gfx card. There isnt a game out today that requires more than 512mb vram to run, and 1gb will normally run most games maxxed out unless your running greater than 1080p resolution, which, like i said, the 550ti is too slow for anyway.