If you're using a Kepler card, check out OBS.
https://obsproject.com/
It uses NVENC which is Nvidia API that ShadowPlay uses to get at the h.264 hardware encoder. Offers quite a few more streaming options than GeForce Experience.
Ah, wish I saw this a bit earlier. I uploaded the first 25 seconds of my Sleeping Dogs benchmark at full 60fps 720p video but the game is at full 1080p with everything maxed. Hopefully your browsers can handle it.