Late Change Of Processor From 1.4GHz Single Processor To A 1.2 GHz Dual Core Processor

HP Pre 3 is coming later in July in the US and looks like something is happening in this late stage which can push the launch of the Pre 3 back. The Pre 3 specs says that the phone is equipped with a single core 1.4 GHz processor and now late change is making the phone use a 1.2Ghz dual core processor. Sure this give a boost of speed to the phone but hopefully it doesn't affect the launch date but since it happen at the later stage the launch date could be push back. Maybe it's a regional difference since the dual 1.2GHz is destined for the UK