Overclockers Club published a review on the NVIDIA Introduces the GeForce GTX 950 for MOBA Gamers and Shares the GeForce Experience

A quote from the article:

NVIDIA has unveiled a new entry-level graphics card, the GeForce GTX 950, and at a mere $159 USD, anyone looking to upgrade their machines may want to take notice. We'll have to wait and see how it compares to other 900 series and 700 series cards when Frank gets his hands on it, but for now, NVIDIA is comparing it to the three-year-old GTX 650. Why that card? Based on the July 2015 Steam Hardware Survey, it's ranked #8 among all video cards, including integrated graphics, so a lot of users could use the upgrade.

 NVIDIA Introduces the GeForce GTX 950 for MOBA Gamers and Shares the GeForce Experience @ OCC