I have a 8800Ultra on latest beta drivers 160.XX (one that were pulled) and it works, you still need Coolbits or NVTweak to let you see settings though.
Copy and paste everything between the 2 lines bellow and save as a .reg file not .txt using Notepad, so example" CCP.reg " without quotes.
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Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\NVIDIA Corporation\Global\NvCplApi\Policies]
"DevPolicies"=dword:00000000
"ModePolicies"=dword:00000000
"ModePersist_GPU:0_Mode:0"=hex:00,00,00,00,40,00,00,00,00,00,00,00,00,00,00*,00,\
05,00,00,00,00,00,00,00,05,00,00,00,00,00,00,00,00,00,00,00
"LutPersistDesktop_GPU:0_Head:0"=hex:00,00,00,00,64,00,00,00,64,00,00,00,64*,00,\
00,00,64,00,00,00,64,00,00,00,64,00,00,00,64,00,00,00,64,00,00,00,64,00,00,*\
00
"LutPersistFSVM_GPU:0"=hex:00,00,00,00,64,00,00,00,47,00,00,00,47,00,00,00,*5a,\
00,00,00,45,00,00,00,45,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"ContextUIPolicy"=dword:00000001
"CplGroupUIPolicy"=dword:00000001
"TaskbarUIPolicy"=dword:00000001
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