Did you know that Nvidia Have a update package (Graphics Plus™ Power Pack #3) to unlock the GPU processor and Let it assist the Main CPU Its called CUDA and if your card Number appears on this Page, then follow the Download link and Install the Drivers.
www.nvidia.com/content/graphicsplus/us/download.asp
Click on the "Learn more" Link to see the list

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- System Requirements
In order to enable GPU accelerated NVIDIA® PhysX™ technology or NVIDIA® CUDA™ acceleration, a NVIDIA® GeForce® GPU 8-series or later with a minimum of 256MB of memory is required.

Also I would advise upgrading also to the Latest Forceware drivers for your Operating System (Version 185.85 upwards) and there is a further CUDA Upgrade for the "Less than 32 core" GPU's (the Less powerful cards) Here too

Info and download links here (for all versions)
www.filehippo.com/download_nvidia_forceware/