Valve has released its Steam hardware survey for May 2017, with NVIDIA enjoying a massive dominance with Steam gamers with 62.41% of people using an NVIDIA graphics card of some sort. This left ATI and AMD with 21.53%, while Intel and its integrated graphics power a surprising 15.65%.
Windows 10 is by far the most used operating system with Steam, powering 77.51% of gamers' PCs. When it came to CPU usage, Intel stands in a sea of blue with 80.22% of Steam gamers using an Intel CPU, leaving AMD with just 19.78% - and it doesn't seem as though Ryzen made a dent just yet, but give it a few more months and we'll take another look at those numbers.
There are still 45.15% of gamers with a dual-core CPU, but 49% of gamers have a quad-core CPU, leaving just 4.25% to the 1%ers who use 6/8/10-core processors.