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P-State P12 missing with GeForce 660 Ti?

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Apr 12, 2017
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Processor Intel Core i5 2500K, 4.2 GHz Turbo
Motherboard ASRock Z77 Extreme4
Cooling Scythe Fuma
Memory 4 x 2 GB 666.7 MHz (DDR3-1333 / PC3-10600), Cl 9, Kingston Value Ram
Video Card(s) Nvidia GeForce GTX 660 Ti (Sparkle - Reference Design)
Storage Samsung SSD 850 EVO 250 GB, SAMSUNG HD103SJ 1 GB, Hitachi HDS5C3020BLE630 2 TB
Display(s) LG 24MB56HQ-B
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Power Supply Sharkoon Rush Power M SHA-R500M
Software Windows 7 64 Bit
Hello everyone,

over the last couple of days, I did some research on Nvidia Inspector and learned about nvidia's card p-states. As I read in different articles there are cards that cycle down to a P12 state which they do when they are completely idle, needing less energy than in the P8.

When I work with Nvidia Inspector, the program reveals, the 660 Ti does not cycle further down - beyond the P8 state. The inspector overclocking window only provides performance level 0 [P8] to 3 [P0] via a drop down menu (attachment).

So my question to you people is: Does the Geforce 660 Ti only have a P8 state and the P12 is implemented in the above series of cards? Or in other words: Is there any option to get to the P12 state e. g. a tool or via BIOS tweaking?
 

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