Card requires dual 8-pin power connectors (just like GTX 690) to consume lots of power. Next to the power connectors theres a EVBot connector for EVBot Tuning Utility (you can buy one for $99.99). There’s also a slot where you can connect multimeter for actual voltage monitoring.
As Jacob mentions, GTX 680 Classified will have a PCB of same height as 580 model, but with a slightly different shape. This model will not be compatible with 3rd party waterblocks, due to non-reference board’s design. Card is equipped with 4GB of GDDR5 memory.
Kingpin (aka k|ngp|n, known extreme overclocker) says that this card “OC’s like a beast”, so this may be an indicator of how this card performs.
EVGA GTX 680 Classified model will be released simultaneously with GTX 680 HydroCopper next month
The EVGA EVBot is a useful tool for tweakers and overclockers to maximize their system and have fun tweaking their EVGA products. With the ability to adjust on the fly voltages, clock frequencies and much more, the EVGA EVBot unleashes the full potential of your select EVGA motherboards or graphics cards! Optimistic Booster allows EVBot to take over and increase CPU frequency for a short amount of time. (ex. up 4MHz every 4 seconds, down 3MHz every 3 seconds) This allows you to obtain the highest performance possible for a benchmark run.
- READ MORE (Source): EVGA GeForce GTX 680 Classified!