Valve's Steam Hardware and Software survey shows that Mac gamers make up just 5 per cent of users of the digital distribution platform.
The Steam digital distribution platform conducts monthly opt-in surveys of the 25 million computer systems running the popular digital distribution gaming platform. The 5 per cent figure for Mac owners is down from 8 per cent in June.
Intel dominated the PC processors, picking up 72.37 per cent market share of Steam gamers comparted with 27.63 per cent of AMD CPUs. Intel processors between 2.0 Ghz to 2.29 Ghz grew the fastest in the last month.
The survey also showed that Nvidia continues to power the majority of gaming PCs with 59 per cent, compared to arch rival AMD's 33 per cent share. However the top three most popular categories of video card were the ATI HD 4800, 5800 and 5700 series respectively. DirectX 11 capable GPUs picked up 1 per cent across the board.
Having recently added software to the mix, the survey showed that Firefox dominates among gamers with an astonishing 63 per cent of Steam gamers opting for the browser versus just 11.5 per cent for Google Chrome. Microsoft Office also appeared on 63 per cent of systems while iTunes and popular bittorrent client uTorrent were both on 30 per cent of systems.
While Windows XP 32-bit continues to be the most popular single SKU operating system for Steam gamers on 34.51 per cent, the combined 32-bit and 64-bit of Windows 7 is more popular at 43 per cent with the 64-bit version of Windows 7 the most rapidly growing operating system having put on 1.26 per cent in the last month.