matej wrote:RC3 is basically the same as 1.0, there are no improvements in this area. And other engines report similar difference (10%) between the two architectures.

I see. Thank you so much. I'll stick with my 580 then.

matej wrote:680 is 10% slower than 580 (as far as the word goes). You shouldn't "upgrade"

Thanks, but this seems the result from previous RC3 version. Is there any improvement for this standalone v1.00?

Not sure if I should upgrade my graphic card, since I'm working with MSI gtx580 lightning xtrem 3G, the best card for Octane in the past.

Any one tested two different cards? like 570vs670, or 580vs680?

Hope this final v1.00 works fine with Kepler.