The new model is based on the Maxwell 2.0 architecture, it uses the GM206 GPU and looks like a cut-down version of the GeForce GTX 950. It allegedly has 640 CUDA cores, 40 TMUs, 16 ROPs, a GPU clockspeed of over 1000MHz, a 128-bit memory bus, and 2GB GDDR5 memory clocked at over 6500MHz. The card requires a 6-pin PCIe power connector and has a TDP of around 70W.
GeForce GTX 950 SE or LP (like we’ve heard) would allegedly feature 640 CUDA cores and likely higher clocks than GTX 750. NVIDIA is definitely trying to keep similar power requirements so anything between 80W to 60W is possible.According to the rumor mill, the card would arrive in March 2016.