Both of the gigabyte GTX 560 cards have a 3 year warranty.
But, either way you look at it the standard Gigabyte GTX 560 OC is better than the SOC edition on a few important areas.
OC: $244.99
REFERENCE PCB (only matters if you are waiting for a full face block)
HAS ramsinks
HAS VRM sinks
Will take a Danger Den Maze 4 or 5 using two mounting locations
AIR COOLING: offers clear advatange over the SOC version.
From what I have seen 99.9% of all these cards can hit 1GHZ core clocks.
Power adapters on the side of PCB
SOC: $269.99
CUSTOM PCB!!!
NO ramsinks
VRM heatsink that covers the VRM modules
Longer PCB
Will take a Danger Den Maze 4 or 5 using two mounting locations
(Requires ramsinks if you gpu only cool, your only option at this time)
Power adapters on top of the pcb
Don't get me wrong, either way you will have a very awesome card! However, saving over 20 bux and just overclocking it 100mhz with the standard OC card almost seems like that is what Gigabyte wants you to do considering it has the card setup like this:
While the SOC version looks like this:
Personally, I'm waiting for the EVGA GTX 560 2GB version because I have a sneaking suspision that they are going to do the same thing that they did with their GTX 460 2GB cards.
And that is:
1) Reference 460 PCB
2) 8 x 256MB instead of 16 x 128MB (this means a full face waterblock can cool all 2GB of ram instead of just 1GB like the other makers cards)
3) XSPC Razer 460 block is only 56.99 and will fit a reference PCB 560 with only a little material removal to clear the top row of caps (460 has 3 rows, 560 has 4 rows but all other holes are in the same location)