The GTX 780M on my personal laptop will not run faster than about 400 Mhz when on battery. To avoid overloading the battery, the GPU will typically throttle to a lower clock speed. While it's likely the battery's own protection circuitry would shut down the battery if overloaded or overheated, a device should never subject its battery to an unsafe load at any time during operation. Continuously pulling 150 W or more from a typical 77 Wh battery is not a great idea and your battery could overheat and fail or even catch fire. In addition, sustained discharge at rates exceeding 1C can significantly reduce the overall service life of the battery. Most Li-ion batteries are not designed to be discharged faster than twice their Wh rating per hour (2C).
#Make mac run faster for games full#
When you add it all up, you might need anywhere from 140 W to 200 W to operate a gaming laptop under full load depending on your system configuration.Ī typical battery in a gaming laptop can store about 60-80 Wh of energy. In addition, you need to power other system components, such as the display, disk, and USB peripherals. A modern Intel performance mobile CPU typically draws about 47 W at full power. The GPU is not the only power-hungry part in a laptop.
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The GTX 765M requires 75 W, while top-of-the-line mobile GPUs like the GTX 780M and GTX 980M can consume up to 122 W. High-performance mobile GPUs can require significant amounts of power to operate at full speed. Running a high-performance GPU at full speed while on battery can damage the battery or require more power than the battery can safely supply
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