Is it worth upgrading the RAM in this laptop?

I have a Lenovo laptop that i was hoping to use for gaming. It has a 2 GB video card, a (weak) 2GHz AMD APU, and 16GB of 1066 RAM. Is it worth upgrading the RAM to 1600? Would it make a noticeable difference in fps while gaming?
Added (1). the CPU will turbo up to 3.2GHz

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