Does it need it and/or does it come with it somewhere?
Yes, every CPU needs thermal interface material to fill the air gap between the CPU and heatsink. If you buy the retail Ryzen 5 1600, it comes with a wraith cooler that comes with thermal interface material that is pre-applied to the heatsink.
the pre applied paste is usually 10x too much material, should use the thinnest possibe amount, 1/2 of a BB is good
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