Graphics Card Issues
By default Ubuntu will use the open source video driver Nouveau for your NVIDIA graphics card. This driver lacks support for 3D acceleration and may not work with the very latest video cards or technologies from NVIDIA.
BinaryDriverHowto/Nvidia
Psensor - A Graphical Temperature Monitor
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Linux x86/IA32 Latest Long Lived Branch version: 310.40 Latest Short Lived Branch version: 313.26 Latest Legacy GPU version (304.xx series): 304.84 Latest Legacy GPU version (71.86.xx series): 71.86.15 Latest Legacy GPU version (96.43.xx series): 96.43.23 Latest Legacy GPU version (173.14.xx series): 173.14.36 Archive Linux x86_64/AMD64/EM64T Latest Long Lived Branch version: 310.40 Latest Short Lived Branch version: 313.26 Latest Legacy GPU version (304.xx series): 304.84 Latest Legacy GPU Version (71.86.xx series): 71.86.15 Latest Legacy GPU Version (96.43.xx series): 96.43.23 Latest Legacy GPU Version (173.14.xx series): 173.14.36 Archive Linux IA64 Latest Version: 1.0-5336 Archive
Unix Drivers Portal Page