Hi,
The GPU was one of the cheaper RX 480s and I'm not sure why the CPU is below expectations though.
Don't worry, any RX 480 will do very good in any games - even in Crysis 3, not to forget BF1, Metro 2033 COD all of them plus Far Cry series all of them.
This is what I have so...
Now, what is happening over there?
My suggestion as always:
Every time one has a new Windows (due to a new computer or a fresh Windows installation), do the following:
1. Start > Settings > Update & security > Windows update => Search for updates.
If updates is being installed, just wait and restart the computer when it says so.
2. Repeat until there are no more updates. It could take several hours.
3. Restart the computer again and check for Windows updates and restart.
4. Install the manufacturers drivers and restart.
5. Run Windows update again and restart.
The reason is that it might be som older drivers being installed before and very important to install these first and sometimes (very often actually) the manufacturer has released WHQL drivers to the Windows database, and therefore the latest hardware driver will be installed from Windows update.
Latest AMD graphics driver:
http://support.amd.com/en-us/download
Make sure that every driver for the motherboard is installed via the CD.
After that, restart the computer and run windows update again.
Plus - make sure you have attached the graphics monitor cable tor the graphics port and not to the graphics port on the motherboard.
Best regard from Sweden