Exposure of Intel DLVR power management technology

An Intel roadmap appeared on the Reddit forum. The picture shows the brand new DLVR power management technology, which will be released with the 13th generation Core Rapter Lake processor in 2022. In addition, this generation of processors will support LPDDR5X memory for the first time, and the CPU cache will also be specifically optimized for games.

DLVR technology is called a " digital linear regulator " and will replace FIVR as a new voltage regulation module. Previously exposed Intel patents showed the words D-LVR, and some overseas netizens discovered that Intel has been developing this technology since at least January 2020.

Specifically, this technology requires an integrated processor voltage regulator module on the motherboard, and an additional digital linear regulator next to the main regulator. The patent points out that this technology has low cost and low complexity, and can more accurately adjust the processor voltage in real-time.

Intel researchers claim that in order to solve the problem of CPU and SoC load surges, it is very important to determine the input voltage of the regulator, which will generate additional power consumption if the voltage is higher than the required voltage. There are several reasons for abnormal voltage increase: motherboard load line (LL), maximum processor current requirements, and inaccurate motherboard voltage regulation. By connecting the primary voltage regulator module in parallel with the linear regulator, the CPU core input voltage can not be too high, thereby reducing power consumption.

The schematic diagram above demonstrates the technological progress of D-LVR technology compared to FIVR. It can be seen that when the CPU is under low load, the average processor voltage will be reduced by about 160mV, and the power consumption can be reduced by as much as 20%-25%; however, as the processor becomes fully loaded, the effects of the two methods tend to be the same. In addition, the voltage drop will also increase the frequency upper limit of the processor, with a performance increase of up to 7%.

According to Intel’s roadmap, the 13th-generation Core processor will follow the 12-generation large and small core design, and the number of cores is expected to remain unchanged. However, with the improvement of process technology and the application of D-LVR voltage stabilization technology, it can be expected that the performance and power consumption of the 13th generation processors will have significant improvements. Foreign media said that although the 13th generation Core is expected to continue to use the LGA1700 socket, the D-LVR technology requires changes to the motherboard circuit, so it is expected that this technology will only be applied to the 700 series chipset motherboards.

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