South Korean site etnews reports that AMD's next generation Greenland GPU, scheduled to be released in Q2 2016, will be produced by both Samsung and Global Foundries using 14 nm FinFET LPP. Since both Samsung and Global Foundries share a common IP for 14 nm LPP, AMD will be in a position to leverage both of them for maximum production capacity.
TSMC, which traditionally produces GPUs for AMD and it's rival NVIDIA, lost AMD's contract due to it's inability to keep up with yield and supply demands.
AMD had been asking TSMC from Taiwan to be in charge of GPU production but it decided to cut contract with TSMC with 28-nano being the last production after issues with yield and instable supplies had continued . -etnews
Greenland is expected to offer 2x the energy efficiency of the current GCN architecture and is AMD's direct competitor to NVIDIA's Pascal.
This is yet another win for Samsung which has managed to steal back Apple from TSMC and will also be producing chips for Qualcomm. It will be interesting to see whether AMD being on 14nm LPP will give it any advantage over NVIDIA who reportedly will be using TSMC's 16nm FinFET+ for Pascal.