Don't fanboy sir, its very unbecoming. I dont see mantle utilization yet, otherwise AMD gpus would be stomping all over the greens in BF4. Until mantle is being adopted over directx etc it doesnt really matter, shadowplay on the other hand is supported by games already and can be utilized. As far as the OP goes, just grab yourself a capture card for streaming, at the end most streamers end up picking one up.