How much memory on your system has a lot to do with open programs as well. I for one only open one tap at a time and at the very most maybe 2, not 30+. Asz31fanatic mentioned, you can just do it yourself. I use Safari, which has been reported to better than Chrome for our Apple systems
Use the tool for the job. If safari performance starts being a problem, try chrome. Chrome doesn't do as well on battery though, and in my experience safari is plenty good enough, better on battery, and already installed.