
What monitor are you using ?
what PSU are you using?
and whats ur budget range?
If heat/power/noise/micro stuttering not a prob= SLI
If cool/low power/low noise/more stable frames = Single GPU
If price problem but want more perf. = SLI
If got budget only for better GPU, don't need alot alot improvement = Single GPU
but if you are gaming on 1080p, no point getting a better card eh unless you want Ultra settings on Crysis 3 @ stable 60fps
I'm using Samsung monitor lcd, 21.5

I believe your current card can max out the resolution already.
Unless you playing Crysis 3.![]()
I'm using Samsung monitor lcd, 21.5