Chrome, 4 tabs, 800 MB of memory used - is this normal?

Question

Google Chrome

Comrades,

the essence of the question is voiced in the title.

I turned on the computer, opened Google Chrome, there are 4 tabs (Gmail, Ya.Mail, VK, FB, and all Chrome processes take up as much as 800MB of RAM. Is this normal? There is a total of 4 GB of memory in the system. OS Win 7. The

question is related to the fact that the system as a whole slows down, perhaps this is due to the voracity of Chrome.