When comparing ShadowPlay vs Camtasia, the Slant community recommends ShadowPlay for most people. In the question“What are the best tools for recording gameplay videos?” ShadowPlay is ranked 2nd while Camtasia is ranked 8th. The most important reason people chose ShadowPlay is:
If you want to record 1080p 60fps, this will get you there. If you were having performance issues using CPU encoding before, Shadowplay will most likely work 10x better that you swear that it doesn't appear to be recording at all.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro GPU accelerated encoding
If you want to record 1080p 60fps, this will get you there. If you were having performance issues using CPU encoding before, Shadowplay will most likely work 10x better that you swear that it doesn't appear to be recording at all.
Pro Allow recording video after the fact
ShadowPlay can set up a recording buffer and only save to a local file if needed.

Pro Built-in Video Editor to Edit video after recording
- Multiple media layers
- Cut, join, insert freeze frame, change volume
- Annotate with shapes and images
Pro Can record audio
Record audio from the room (via microphone) or from your device. Add sound later if you want. Or not at all.
Pro Tutorial instruction is plentiful
There are hundreds of tutorial lessons among the TechSmith, YouTube, and Udemy sites. The presentations are clear and small enough to assimilate quickly and easily.
Pro Quick start with incremental ramp-up
Although the initial workspace screen may look daunting, with just a little instruction it's quite easy to navigate. More advanced features can be brought in as needed.
Pro Easy to learn and use
Show somebody something real quick or create a commercial grade production with a little practice.
Cons
Con Nvidia cards only
Only works with Nvidia cards, so those with AMD cards will not be able to use this app.

Con $200 price tag
If you're not recording your screen on a regular basis, one of the free options might be a better choice.

Con Quite complex for novice users
