NVIDIA® Gelato® is a hardware-accelerated, non-real-time rendering software that leverages the NVIDIA GPU as a floating point math processor. This allows Gelato to render images faster than comparable renderers, but without the quality limitations traditionally associated with real-time graphics processing on the GPU.
http://www.nvidia.com/page/gelato.html
If you require extra power in your 3D rendering pipeline, you can upgrade to Gelato Pro. With Gelato Pro you get the features required for production rendering:
* NVIDIA® Sorbetto? interactive relighting technology
* DSO shadeops
* Network parallel rendering
* Multithreading
* Native 64-bit support
* Maintenance and support from NVIDIA’s High-Quality-Rendering Team