[H]ard|OCP are comparing AMD and NVIDIA's exhibitionist software to see which offers streamers the best experience.  The two applications are superficially similar but they both offer different features and performance, not to mention only supporting their own hardware.  From a performance standpoint, NVIDIA's ShadowPlay is slightly ahead in efficiency but not in any meaningful way, you would not be able to discern between the two in a blind test.  When you look at features, AMD's ReLive is the clear winner.  You can set your bitrate between 1-100Mbps at every resolution, from 360p to 2160p while NVIDIA maxes out at 50Mbps at any resolution and only supports up to 1440p.  There are several other features AMD included which surpass NVIDIA's offerings, read about them all here.

"We take AMD ReLive in the AMD Radeon Software Adrenalin Edition and NVIDIA ShadowPlay as part of GeForce Experience and find out which one is more FPS and CPU-efficient for recording gameplay. We will compare features, specifications, and find out which better suits content creators for recording gameplay."

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