When Gigabyte first released their batch of X58 motherboards it contained three models representing the value, mid-range and high-end markets. They were the UD3, UD5 and UD7 respectively. The main differences between each model were the "extras" that you got with each one. Although the UD3 did have a reduced amount of power phases compared to its two bigger brothers. Power-phases have two main uses. Firstly to ensure that the power delivery is smooth and stable from idle through to heavy loading. The second, and to us almost more important, aspect is that the ability of a motherboard to supply plenty of amps and retain stable voltage is key to overclocking.



Link: Overclock3D