According to HWMonitor, im using about 98 percent of my ram when playing cs go with Skype and a few other programs (Steam, GPU-Z). It's also taking longer to alt tab in and out of cs go. My current RAM is a 2 by 4gb g skill ddr3. Should i upgrade to 16 gb? Should I buy an identical set? ( I know its hit or miss but it is a lot cheaper)