Similar to the Vega post by Justiceofthesteve
Shamelessly copied form NVIDIA site:
THE HUNT BEGINS
For a limited time, buy a GeForce® GTX Get Monster Hunter: World*
In Monster Hunter: World, you'll hunt gigantic monsters in amazing landscapes while crafting epic weapons to take on even bigger, badder beasts. Upgrade your weaponry with a GeForce GTX 10 Series-powered graphics card, and enjoy the ultimate hunting experience.
For a limited time, take the game home free when you get Game Ready with a qualifying GeForce GTX 1070 Ti, 1070, or 1060 graphics card (OP Note 6gb only as per T&C).
It seems like you have to register for it on the manufacturer's website eg Galax
On the Galax note, it may stack with the $25 steam code posted by jtrvk if invoiced today for GFX card
Does not mention anything about participating stores even in T&C
Edit:
Promotion started 23/10
Promotion is not limited to manufacturers though you will need to hunt aroundAsus
Pre-built iirc excluded as that is stated on galax site ( which is where mine is from)
Sweet, just bought a 1070 yesterday. Hope I'm eligible.