shouldn't, but the software might do something funky when you first put them together like revert them to stock then match them. You can always overclock them together once hooked up.
the gpus should run at the same frequencies so you will have to down clock the toxic, but i think the software will do that automatically. performance should be slightly less than if you xfire'd 2 280x.
shouldn't, but the software might do something funky when you first put them together like revert them to stock then match them. You can always overclock them together once hooked up.