Oct 01, 2016  If the game utilizes Metal (which Guild Wars does not), you should see a pretty decent stability and FPS increase since there's been some major improvements to Metal in Sierra. I've noticed it in World of Warcraft (where El Capitan was incredibly unstable and locked up my whole machine if running the Metal API). For example, you can give a name like MAC OS X 10.12 – Sierra DP. However, this is up to you what name you want to give. Ps2 mac emulator 2017. Now browse to select a suitable location for the Virtual Machines RAM file.