Utility depends on the difficulty your miner is currently set to, so the value is not consistent.
so the lower the diff is set, the higher the utility is? the figure in utility does now represent the performance of the unit itself? by the way, how is best to set or how to calculate what best difficulty to set on x10 and each coin we are mining? i want to try solomining....any idea what or how to best set the machine. is the diff setting matters most?