Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
no idea about performance since i didnt check benches of those two, i was just saying that sli drivers are better than xfire currently. im using 5870 crossfire and my other rig is 580 SLI. video card ram size would only really shine on big resolutions with anti aliasing
from xfire 5870 to SLI 580, no prob at all. no reinstalling of windows. just used driver sweeper to clean off remaining amd drivers that didnt get uninstalled.