GPU works 100%, but GPU bound is 0%?

[pilotsh]

I hope someone with experience of bench-marking with SOTR can pass on some knowledge!

Shadow of Tomb Raider Benchmark. CPU is 40%, GPU is 100%. But in the results it says GPU bound 0%. This makes no sense to me! Settings low, medium, high all 30-40FPS. GTX780 DC2OC.

If GPU is working 100%, why is the benchmark telling me it is 0% bound?

*confused!*