Please read this FAQ for more information on this issue. This issue has been resolved in v275.33 drivers.
The Release 275 beta driver v275.27 can cause significant performance drop in The Witcher 2.
NVS-series notebook GPUs (only those that support DirectX 10 or higher).
Quadro FX-series notebook GPUs (only those that support DirectX 10 or higher).
Quadro NVS-series notebook GPUs (only those that support DirectX 10 or higher).
This driver supports the following NVIDIA notebook GPUs (please refer to the Products Supported tab for exceptions): You can read more about this family of drivers on. This is the first WHQL-certified release from the Release 275 family of drivers (versions 275.xx to 279.xx).
NVIDIA 3D VISION PHOTO VIEWER SOFTWARE FOR WINDOWS 10 INSTALL
If you own a Dell Inspiron 1420, Dell XPS M1330, Dell XPS M1530, or Dell Latitude D630/D630c it is highly recommended that you first install this Dell software update.
It is recommended that you backup your current system configuration.
Please check to make sure that your notebook has a supported GPU (refer to the Products Supported tab below).
OEMs may not provide technical support for issues that arise from the use of this driver. NVIDIA recommends that you check with your notebook OEM about recommended software updates for your notebook. However, please note that your notebook original equipment manufacturer (OEM) provides certified drivers for your specific notebook on their website. As part of the NVIDIA Verde Notebook Driver Program, this is a reference driver that can be installed on supported NVIDIA notebook GPUs.