Intel details the integrated voltage regulator in their CPUs Haswell
A few months ago we learned that Intel Core microprocessors fourth generation “Core 4000 Series” based on the micro-architecture Haswell , incorporate a voltage regulator integrated FIVR called (Fully Integrated Voltage Regulator) , whereon the PC Watch us bring some details.
The intel microprocessors based on the Haswell microarchitecture and above comprise an integrated voltage regulator, which they describe as primarily responsible for the low-power microprocessors offer to incorporate it, as it will allow better control of the voltage of each of the units microprocessor (x86 per core, shader processors integrated graphics, and internal bus) completely independently, and with a response “near real time” to be integrated into the microprocessor itself.
fivr consists of a micro-controller chip “Common Cell” of 20 cells (called Power Cell), located in the same package microprocessor (Multi Chip Module “MCM”), each Power Cell has control of 20 stages (320 phases Common Cell). Probably in future chip micro-architectures that fully integrates the microprocessor die.
The module will allow construction FIVR microprocessor with TDPs as low as 10W (Haswell-ULX), which is welcome factor for laptops, but it is unclear if this feature somehow affect the ability to overclock future Intel microprocessors Haswell based, as has been rumored in some communities .
Link: 「Haswell」の最強の武器「統合電圧レギュレータ」 (PC Watch)Tags: Common Cell, CPU, fivr, Fully Integrated Voltage Regulator, Haswell, integrated, intel, MCM, microprocessor, Power Cell, processor, regulator, TDP, voltage