Design and Features
The EVGA GeForce GTX 680 SC Signature 2 looks very serious. A black-and-silver plastic casing with two fans and an EVGA logo covers the entire face side of the PCB.
The reverse side of the PCB is open, as is usually the case. The SLI connectors are protected with a rubber cap. The graphics card model and the manufacturer are indicated on the cooler’s plastic casing:
There is a vent grid in the card's mounting bracket to exhaust the hot air from the cooler out of the system case.
There are quite a lot of vent holes here, even above the DVI connectors, although the cooler design doesn't really call for that. The video interfaces include DVI-I and DVI-D (dual-channel), HDMI and DisplayPort. Their connectors are all covered with rubber caps.
Two MIO connectors for building 2-, 3- and 4-way SLI configurations can be found in their conventional location, just like the 8-pin and 6-pin power connectors:
The peak power consumption of the GeForce GTX 680 is specified at 195 watts. A 550-watt PSU is recommended for a computer with one such graphics card. The EVGA GeForce GTX 680 SC Signature 2 is no different from the reference sample in this respect.
Its PCB follows the reference GeForce GTX 680 design as well, but has the full number of power components:
The reference GeForce GTX 680 has four GPU power phases whereas the EVGA version has five.
Thus, the power system formula is 5+2 (GPU+memory). The GPU voltage regulator is managed by a Richtek RT8802A controller.
The 28nm GK104 Kepler chip was manufactured in Taiwan on the 12th week of 2012 (mid-March). It is revision A2:
The base GPU clock rate is 1097 MHz in 3D mode (boosted up to 1163 MHz), which is 9.1% higher than the reference card’s. That’s substantial factory overclocking although some GTX 680s, for example from ASUS and MSI, come with even higher clock rates. The GPU frequency is dropped to 324 MHz in 2D mode to save power. The voltage is also dropped then, from 1.175 to 0.987 volts.
The FCBGA-packaged GDDR5 chips were manufactured by Hynix Semiconductor:
Labeled H5GQ2H24MFR R0C, they are rated for 6000 MHz but the memory frequency of the EVGA GeForce GTX 680 SC Signature 2 is set at 6208 MHz (higher by 3.5%). The memory bus is 256 bits.
GPU-Z reports the specs of the EVGA card: