Here's a quick overview if what you get for free:
These bundles should be available towards the end of February.Radeon HD 7850/7870: Bioshock Infinite & Tomb Raider (EMEA, NA, Australia, and New Zealand) or Bioshock Infinite and Devil May Cry (2013) (APAC).
Radeon HD 7950/7970: Crysis 3 and Bioshock Infinite
2x Radeon HD 7950/7970: Crysis 3, Bioshock Infinite, Tomb Raider, Far Cry 3, Hitman: Absolution and Sleeping Dogs.
ASUS ROG ARES II: Crysis 3, Bioshock Infinite, DiRT: Showdown, Far Cry 3, Hitman: Absolution, Sleeping Dogs, Deus Ex: Human Revolution, and Nexuiz. (this offer is only valid in the UK)