A GPU defect on the Steam Machine requires a full replacement of the proprietary motherboard. You can’t put a new GPU in or have someone do it for you. And when GTA VI comes out there is no upgrade path possible to make the Steam Machine perform enough.
> A GPU defect on the Steam Machine requires a full replacement of the proprietary motherboard. You can’t put a new GPU in or have someone do it for you.
Of course you can have someone put in a new one for you, it's called an "RMA"? A GPU defect is going to show up well within the warranty period. It's things like fans that will fail over time.