The offer kicked off on July 1, 2019 and runs through March 10, 2020 (or when supplies run out). Codes will need to be redeemed by June 30, 2020, at the latest. AMD's site suggests you can wait until the release of Gears 5 in Fall 2019 to activate this offer, but there are also over 100 other PC games available via the Xbox Game Pass.
Purchase qualifying AMD Radeon™ graphics or Ryzen™ processors and get 3 months of PC Games with Xbox Game Pass* and play Gears 5, coming Fall 2019! From one of gaming’s most acclaimed sagas, Gears is bigger than ever, with five thrilling modes and the deepest campaign yet. With all-out war descending, Kait Diaz breaks away to uncover her connection to the enemy and discovers the true danger to Sera – herself.
Get the ultimate gaming experience with the power of Ryzen™ processors and the performance of Radeon™ graphics and take it to the next level when winning is your only option.