Streaming
Streaming
You should be able to begin streaming with your current setup. Your GTX 1050 Ti offers strong graphics performance, and pairing it with an i7-2700K and 8GB RAM should handle the demands of streaming Rainbow Six Siege well.
If you opt for Quick Sync or Shadow Play encoding, 900p at 60fps should work within 6000kps. I usually choose Quick Sync and could run the encoder on my AMD card, though I considered using the GPU on my CPU. For quality results, check out my YouTube channel—most streams are there.