Uh yeah, you have so many processes running, itunes related (bonjor,applemobildevicesupport,ituneshelper...etc) The RTHDCPL is an HD audio equalizer which I also have and takes up lotta ram and proc power.
-Technically when playing games, its safe and recommended to disable all processors for the (USER) except for explorer.exe and taskmngr.
-YOu can restart and all the processes will come back, NOTE**-= Do not touch network and system processes unless you are sure they aren't aren't nessary like applemobiledevice support.