While NVIDIA and Intel are, obviously, still dominating, AMD saw a small bump in its GPU market share last month, from 8.2% to 8.9%. Some other stats to be gleaned include Windows 7 64-bit remaining as the most popular OS, and the NVIDIA GeForce GTX 1060 being the most used GPU.
AMD has also managed to slightly increase its CPU market share by up to 1% (from 8.1% to 9.1%). From the looks of it, the first Ryzen CPUs did not make a big difference as some users were expecting/hoping. Still, AMD will release the Ryzen+ CPUs in the coming months so there is a chance that things may improve even further.
Discussion
Source: [H]ardOCP – Steam February 2017 Hardware Survey Shows AMD Gaining a Little Ground