Everything You Need to Know About The QuickPath Interconnect (QPI)

Power Modes

QuickPath Interconnect offers three power modes, called L0, L0s and L1. L0 is the mode where QPI will be fully operational. On L0s state the data wires and the circuits that drive these wires are turned off for saving energy. And on L1 everything is turned off, saving even more energy. Of course L1 state provides a higher wake-up time than L0s.

QuickPath Interconnect (QPI)Figure 5: QuickPath Interconnect power modes.

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Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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