EVO212

So i have some questions , just want to make sure everything is going to be ok when i build this . 1.Does this gpu support freesync? 2.Will evo 212 Black fit the Cooler Master Chassis MASTERBOX Q300L ? 3.Is the mobo in this build an overkill? CPU - AMD Ryzen 5 2600 3.4GHz GPU - Sapphire...