GTX 660 3GB FTW Signature 2/ GTX 660 3GB FTW Is there a difference?

EVGA GeForce GTX 660 3GB FTW or EVGA GeForce GTX 660 3GB FTW Signature 2

Is there a difference between the two, other than the different apperences? LIke does one get better cooling than the other?

Honestly spec wise they are the same but the FTWSignature 2 has 2 fans instead of the blower fan

 

Now if I were to get either one, would it be best to get a 2GB rather than the 3GB(or I should say," do i really need the 3GB") ?

Games like Metro 2033 love extra ram but i think it depends on you monitor size and the resolution you play at i have a 7850 1 gb and a 560 ti 1 gb both seem to play bf3 and cod really well but i only run at 1920x1080 on some games and 1360x768 on others so 1 gb is fine for me even my old 8800gt play skyrim at a good fps with 512 mb so it's really up to you