Are CPU clocks, GPU clocks etc reported anywhere?

[da na]

Thinking of making a little LED turbo display like you'd see on a 486 PC, but for a modern system. Pretty sure the motherboard doesn't have that anywhere, a connector to directly monitor the clock or FSB. So is there any log file or monitoring software that an Arduino over USB would be able to read raw number values from? It'd then convert those values to the digits shown on the LED. CPU, 2900-3800 mhz for CPU would be cool but if that won't work perhaps Nvidia's monitoring overlay for GTX cards is hackable? That'd be cool but IDK... less authentic. If PWM fan headers give raw number values I could also use that but I doubt, plus that wouldn't be as interesting as CPU speed... 

Any help would be appreciated!

[Jurrunio]

If HWinfo cant do it I can't think of any software that could. I'm not sure if HWinfo alone would be enough though, I know it supports data exporting to say, RTSS but to an Arduino will be a diferent thing.

[Hackentosher]

You would probably need a python script that could grab your GPU clock from whatever windows service. From there, there are serial libraries for python that can be used to talk to an arduino.

 

Edit: this thread looks helpful, maybe the pywin32 library can access real time gpu clock speed. https://stackoverflow.com/questions/38103690/get-system-informationcpu-speed-total-ram-graphic-card-model-etc-under-window