Hi, I’m a forum volunteer, and I don’t work at Blizzard. This is my personal opinion of the situation as someone who does understand computer specs.
The processor in this setup performs below the listed minimum requirement for Overwatch on PC. You might be able to load the game, but probably not. And since it’s below minimum specs, there’s no guarantee it would keep working with each new patch if you were able to load it now.
My personal advice is to avoid this purchase.