Then absolutely, you'll be one of the few who would benefit from Ryzen and you wouldn't notice much of a drop in gaming either...Its much too subjective to make blanket statements like that, if all you do is play games, watch youtube and have little interest in future proofing then a 4 core CPU will suit you fine.
However, as someone with an Intel 4 core i'm finding my hobbies which include various productivity work very hampered and extremely laborious, my gaming is also starting to suffer.
A 16 thread Ryzen CPU would be 3 times better for me than my 4690K, i have no doubt my gaming would also get a boost.
