Title says its all really 
Got my gaming HTPC with a Vega 64, 16gb ram and Ryzen 2700x, which is connected to my 65" OLED 4K TV.
With the 5700 XT been out for a few months and drivers had time to mature. Is it worth upgrading from the Vega 64 to 5700 XT for 4K gaming?

Got my gaming HTPC with a Vega 64, 16gb ram and Ryzen 2700x, which is connected to my 65" OLED 4K TV.
With the 5700 XT been out for a few months and drivers had time to mature. Is it worth upgrading from the Vega 64 to 5700 XT for 4K gaming?