Question about nvidia video cards?

what is better two video cards 9800gtx 512mb each

or a gtx275?

and if i overclock them which will be better?|||Well using my GTA IV question from earlier, they have an image of their benchmarks. They said a GeForce GTX 260 performed just as good as a GeForce 9800GTX+. Then the GeForce 9600GT came in third and 9600GSO came in fourth.|||Two 9800gtx 512 mb is better

But two GTS 250's would be even better(u were talkin about GTX 275 BUT these[two GTS 250] are better than a GTX 285, seriously believe me!!)

So, if u get these two for cheap then dont get those two 9800gtx's and get two gts 250 512mb, i think one will cost u 120-130$

U can do ur own research and figure out what i am sayin!!

And yeah two cards will obviously overclock better than one card!

--- GOOD LUCK ---|||Overclock is cool option but it damages the parts with continouos use of it.

get one whoel 1G is better.