An edited video provided the 1st documentation of a computer counting reps.  The reality was it only made 3.5fps instead of 4.5 & this wasn't fast enough to detect hip flexes.  

It detected mane hair instead of arms.

Then it froze for several minutes before briefly hitting 4.5, then dropping back to 3.5.  The only explanation was thermal throttling.  

If only obsolete high end graphics cards could drop to $30 like they did 20 years ago, but tried running it again on the GTX 1050 with the framerate at 5fps.  This actually allowed it to play 1920x1080 video with an acceptable amount of studdering, while also processing machine vision.  They actually have some form of task switching on the GPU, but PCI express is a terrible way to transfer data.  

As it has always been with GPU computing, we have 32GB of mane memory on the fastest bus being used for nothing while all the computations are done on 2GB of graphics memory on the PCI bus.