Funnily, you can figure out
1) Graphics, Core, Shader domain clocks and Power Readings by running nvclock utility
2) Memory Utilization = Memory Used / Memory Available * 100%
ECC mode and stats are not available on consumer products.
So the only thing NVIDIA hid which is really useful for all of us is GPU utilization.
I'm sorry, but the decision to hide GPU utilization from users did nothing good even from the POV of making us buy professional NVIDIA GPUs (which are just rebranded consumer products without artificially imposed limits).
Now if only the rest of people out there could understand how money hungry corporations like this work the world would be a better place.