Hi guys. My system currently has 1x16gb of ram. But I heard to get best performance, I must have 2x16gb of the same ddr4 ram. My concern is cost and if there is a cheaper alternative. So I ask our community experts if it's advisable to buy 2x4gb of ram to go along with my current 16gb, or should i just buy another 16gb (more expensive) and reap the best results especially when using video editing and spreadsheets. Any advice should be a huge help and is appreciated greatly. Thanks.