CPU core voltage

<p>The CPU core voltage (<i>VCORE</i>) is the <a href="/facts/Power_supply/4A8zBRHn">power supply</a> <a href="/facts/Voltage/EN2po6N2">voltage</a> supplied to the processing <a href="/facts/Multi-core_processor/ABNb65hQ">cores</a> of <a href="/facts/Central_processing_unit/Jxp1bqMV">CPU</a> (which is a <a href="/facts/Digital_circuit/vWgfC29C">digital circuit</a>), <a href="/facts/Graphics_processing_unit/PTK1RQVp">GPU</a>, or any other device with a processing core. The amount of <a href="/facts/Power_(physics)/mkaEyRnn">power</a> a CPU uses, and thus the amount of heat it dissipates, is the product of this voltage and the <a href="/facts/Current_(electricity)/Dc1xdnUX">current</a> it draws.
In modern CPUs, which are <a href="/facts/CMOS/NJIWYgBl">CMOS</a> circuits, the current is almost proportional to the <a href="/facts/Clock_rate/w055Woaj">clock speed</a>, the CPU drawing almost no current between clock cycles. (See, however, <a href="/facts/Subthreshold_leakage/bB9yIDqF">subthreshold leakage</a>.)
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CPU core voltage open-in-new

CPU core voltage