Whenever I rotate the model, the GPU spikes to 100% which makes the rotation motion very choppy.
While your GPU is working (and this should not be choppy) the VRAM is hardly used (1.2 / 6 Gb) so this is not a problem and is not causing the crash.
Something else must be hapenning.
At this point I recommend trying on another computer to see if you see the same behavior.