December 2, 2021

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Intel Raptor Lake processors will be equipped with a "DLVR" digital linear voltage regulator - which can help reduce power consumption by 25%

Intel Raptor Lake processors will be equipped with a “DLVR” digital linear voltage regulator – which can help reduce power consumption by 25%

The 13th generation Intel Raptor Lake desktop processors may be an update to Alder Lake, but it won’t just be a standard clock like previous generations. The Raptor Lake CPU range is expected to come with a number of improvements, one of which is DLVR.

Intel Raptor Lake processors use DLVR to save power and improve performance

Information comes from Intel Raptor Lake processors that use the new DLVR technology “Digital Linear Voltage Regulator” reddit Through a patent first discovered by someone from the inside, Underfocus. Underfox covers patents from various companies and publishes useful data that gives us an overview of upcoming technologies. DLVR is also mentioned in the discovered chips Video Cards a moment ago. Like Haswell’s FIVR, the DLVR will be used in the Raptor Lake CPU as an on-chip voltage regulator.

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Intel recently released more details about DLVR in a patent titled “Method and Device for Digital Linear Control”. The patent states that the DLVR will act as a secondary regulator in addition to the main voltage regulator, which will be on the CPU motherboard. The purpose of the DLVR Secondary Controller is to reduce power consumption in a cost effective manner and also through a process that requires less complexity.

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Currently, Intel processors, which rely on voltage regulation on motherboards, can deliver a higher voltage than usual, which leads to higher heat and power consumption. The main suspects are the motherboard line load (LLc) calibration and the CPU current requirements along with the motherboard voltage regulator, sometimes resulting in inaccuracies in voltage management. The DLVR will act as a protection against them and help keep the voltage numbers under control for the CPU, resulting in lower power consumption and heat generation.

The patent also shows that Intel Raptor Lake processors with DLVR can reduce voltages by 160 millivolts, which is a 20-25% reduction compared to conventional designs. A voltage drop of 21% also means that the CPU gets 7% more power. In addition, Raptor Lake processors with DLVR will also absorb lower voltages to achieve current (Ampere) targets with a more efficient VI curve.

Chart 500 shows that it is possible to remove up to 160 millivolts of CPU voltage Vin, which translates to about a 25% to 25% reduction in CPU power, as shown in Chart 520. Power above 40A does not take into account the calculation of D-LVR losses. In this example, a 21% decrease in CPU translates to a 7% increase in performance.”

via Freepatents

Intel’s Raptor Lake line, more specifically laptops, is expected to use DLVR technology. Along with DLVR, the CPU is also expected to offer increased cores/threads, an advanced Raptor Cove architecture, higher tones, more buffering, and faster DDR5/LPDDR5X memory support. The family should start by the end of 2022.