This cheat is a very simple one to explain: a certain Nvidia video card tweaking utility (for obvious reasons not mentioned by name) allow people to enable a very high level of detail value, making the benchmark run either without details or even without image of any kind. The 3D benchmark becomes unrecognizable and in addition, the FPS rate is not visible anymore. Since in certain benchmarks, the 3D image contains only two or three colors, Futuremark and HWbot decided not to support this feature as a legit tweaking method. Note that the usual LOD tweaking, which requires a lot of time to find the sweet spot, is allowed.