The 7750 works for moderate graphics level, but on games such as GTAIV, Saints Row III, and Guild Wars II, it falls just a tad short of ultra graphics at 1080p. Would it be better for me to go with two 7750 or go with another graphics card, say the 7870 for example. All suggestions and comments will be taken into consideration.
I don't know about GW2 but the other two games you mention fall short of ultra just because they're terrible. GTA4 is well known for its performance issues, and SR3 is stupidly hefty in Dx11.