Is this normal for browser CPU and RAM?

Looking at task manager... Is it normal for Puffin browser to use a lot of RAM (100-400 MB, which is even more than Chrome uses!)...BUT...Puffin hardly uses any CPU (it's usually around 0.40%). Do these numbers sound normal to you? Should I be concerned? I noticed when I use Chrome it doesn't use nearly as much RAM as Puffin, however the CPU is higher than Puffin. Chrome CPU is around 10%. Update: Okay like now I have Puffin open with a mere two tabs but I'm not even using it at the...

Is this normal for browser CPU and RAM?

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