I'm stuck between the two, I live stream constantly but my current processor can't handle it, I play pretty intensive games like BF4 and some others, and streaming takes a mighty toll on my 3570k. I know the 3770k is decent, but its also on a dead socket, and the 3930k is on the newer 2011, which means I would have to buy a new mobo which I would be fine with, but in the long run, which would be the better choice through and through? I want to be able to stream with like little to no performance hit in gaming... Any thoughts?
More about :3770k 3930k heavy gaming heavy live streaming
Although you get multi-threading with the 3770k, the additional 4 threads from the 3930k (12t 3930, 8t 3770, 4t 3570) should allow you to multitask more smoothly. Also, you get more PCIe lanes so you can drop more GPU's in, in the future to help as well.
Video cards that have built in H264 encoders AKA GTX 670 can lessen the load on your cpu. To get into a Sandy-E when Intel has already announces Haswell-E with a new chip set coming is not the way to go.
Go for a 3770k, it should get you the extra power you need to stream comfortably, plus you can keep your current motherboard. Since it doesn't look like you'll be running 4 way SLI or 64gb of RAM you won't benefit too much from the X79 platform.
I may have to check into the 3770k more, currently running a GTX 780 OC right now, and shadowplay streaming is just... Terrible, so I use OBS "Open broadcaster software" and its less CPU intensive than Xsplit but its still pretty high, I sit around 90-98% load while streaming higher end games.