NVIDIA has just launched another version of their GeForce Experience, incrementing the version to 2.1. This release allows video of up to "2500×1600", which I assume means 2560×1600, as well as better audio-video synchronization in Adobe Premiere. Also, because why stop going after FRAPS once you start, it also adds an in-game framerate indicator. It also adds push-to-talk for recording the microphone.
Another note: when GeForce Experience 2.0 launched, it introduced streaming of the user's desktop. This allowed recording of OpenGL and windowed-mode games by simply capturing an entire monitor. This mode was not capable of "Shadow Mode", which I believed was because they thought users didn't want a constant rolling video to be taken of their desktop in the event that they wanted to save a few minutes of it at some point. Turns out that I was wrong; the feature was coming and it arrived with GeForce Experience 2.1.
GeForce Experience 2.1 is now available at NVIDIA's website, unless it already popped up a notification for you.