Originally Posted by
Little_Dud
I'm new too... Yay.
So the Hydro copper has a higher factory OC, which doesn't mean you can't manually overclock the SC card with an EK block on it, but the way I think it works is that when EVGA get the cards they test all of them to see what their limits are and the best ones get hydro copper water blocks on them (in this case) and the not-so-good ones get sold with reference coolers and a lower clock speed. The gist of this is that even though the SC and the Hydro copper are similarly priced, the SC might not be able to overclock to the Hydro copper level, because if it could have done, it would have been sold as a Hydro copper. Please will someone correct me if I'm wrong.
I don't think there will be a huge difference between the EK-FC780 GTX Ti and the Hydro copper in performance anyway, considering it will cost you an extra £75+ for the block. My advice would be to go for the Hydro Copper.
This is a bit of a moot point anyway as both the SC signature and the Hydro Copper singature cards are out of stock on Scan at the moment, so you just might want to go for whichever one comes in stock first