The GTX 960 G1 Gaming works at base clock of 1241MHz, while the reference GPU base clock is 1126MHz. Nvidia's GPU Boost 2.0 takes the average GPU clock to 1178MHz for the reference GPU and to 1304MHz for the G1 Gaming card. Note that the actual Boost clock will vary from game-to-game depending on actual system conditions. Geforce GTX 960 pack 1024 CUDA cores. The memory subsystem of GeForce GTX 960 consists of two 64-bit memory controllers (128-bit) with 2GB of GDDR5 memory.

The reference GTX 960 has a TDP of 120W while the G1 Gaming goes up to 160W, but thanks to 6-power delivery design ensures higher, solid boost clock while maintaining low temperature.
Like GeForce GTX 980, the GeForce GTX 960 has a new display engine capable of supporting resolutions up to 5K with up to four simultaneous displays (including support for up to four 4K MST displays). GeForce GTX 960 also supports HDMI 2.0.

To fulfill consumer's needs Gigabyte also showed two other SKUs which are WF2OC (1216 MHz base /1279 MHz boost) and IXOC (1165 MHz base /1228 MHz boost).
The G1 Gamin comes with great performance and cooling solution for enthusiasts and gamers while the WF2OC is better for value seekers. The IXOC card is special by being short and this could be selling point for HTPC builders. Below are images, first of the WF2OC, and then of the IXOC. The MSRP of GTX 960 G1 is ?245, Windforce OC ?219 and ITX version ?199 in Germany.