It surely is an indicator of something but if you have a modern laptop with factory configuration from one of the generic Windows laptop manufacturers, chances

It surely is an indicator of something but if you have a modern laptop with factory configuration from one of the generic Windows laptop manufacturers, chances are it's an indicator that the power settings are set up for marketing/benchmarks and not real world use. Every single ultrabook and workstation laptop I've had outside of Apple products have been poorly configured, especially the Intel Turbo Boost settings. I'm not an expert in CPU thermals by any means, but from what I've gathered, in order to eek out a tenth of a gigahertz for their marketing materials (with rapidly diminishing returns because physics), manufacturers usually set Turbo Boost Power Limits 5-10 (or more) watts too high. Since Turbo Boost usually maximizes a single core's frequency and the heat generated increases exponentially, it creates a very concentrated heat spike in the silicon. Even if the CPU heat sink is good enough to passively dissipate that much heat from all of the cores, the turbo boost hot spot forces the fans to spin up early before the CPU knows how long the boost will be needed (otherwise Turbo boost would significantly reduce the lifetime of the CPU). Combined with random scheduled OS tasks that take a split second of turbo to run a process and firmware configured with a minimum fan running time to avoid even more annoying pulsing, these power limits cause many mass market laptops to needlessly spin up their fans all the time. It's ridiculous but I've been running ThrottleStop/the equivalent on Linux to under-clock every laptop I've owned since Turbo Boost was introduced. A small 10-20% reduction in turbo boost power limits is rarely noticeable unless you have a very specialized and irregular CPU-bound workload but it makes a significant change in the amount of heat it generates and gives the passive dissipation enough time to absorb a boosted workload instead of spinning up the fans in an emergency.