I am considering selling my 2013 PC and 2013 iMac to have one desktop machine. My current PC has a Sapphire 2GB SA-7850-2GD5-OC-V2 7850-OC PCI-E VGA Card (SI). Would the GPU in the iMac be similar? I just want something that will last me 3-4 years, that will let me play the sims 4 via parallels etc.