NVIDIA will be introducing the ShadowPlay Beta with the 1.7 release of GeForce Experience on October 28th. ShadowPlay is a free, easy to use gameplay capture tool that utilizes the on-board H.264 encoder that is built into the GeForce GTX 600 and 700 series graphics cards.
There are two different modes in ShadowPlay. The first is Shadow Mode. It follows your gameplay saving the last ten minutes of action to a temporary buffer on your hard drive. When you have an exciting moment in-game or pull off a sick move all you have to do is hit Alt + F10 to save the buffered footage to a permanent file. This allows you to save the footage even after the fact.
The second mode is manual mode that works like traditional gameplay recorders. You hit Alt + F9 to start recording and hit it again to stop recording. File sizes on Windows 7 are limited to 4 GB, but if you have Windows 8 or 8.1 the file size is only limited by the available disk space.
ShadowPlay uses the H.264 hardware encoder that is found of GeForce 500 and 700 series graphics cards to record at 1920 x 1080 resolution at 60 frames per second. All DirectX 9 games and higher are supported. Compared to other game capture solutions that hammer the CPU, ShadowPlay’s hardware solution has a 5-10% performance impact when using the max quality 50 mbps recording mode.
NVIDIA plans to update the app with a direct streaming feature to Twich in a future update. The ShadowPlay Beta will be available on October 28th through the GeForce Experience.
Source: GeForce | News Archive