I think it was around 1178 boost in evga stress test for one or the cards, the other was around 1140 mark. Im guessing that is something to do with one of the cards working harder than the other. (im a noob) Something i read when looking up how SLI works. I did overclock my CPU to 4.5ghz but my cards kept crashing in heaven on low offsets. I brought it down to 4.4ghz and it became more stable.
I see you can pick up a display port to dvi signal converter up for around £60
I see you can pick up a display port to dvi signal converter up for around £60