Intel was kind enough to show us the 300mm wafer filled with as much as 500 Dual core Wolfdale 45 nanometre processors.

If you put these two together you will get Yorkfield 45 nanometre quad core.if you presume that every chip from the wafer works you can get more than 500 dual core CPUs out of it and this is a lot of money.

These wafers are result of the pre production and are filled with pre silicon CPUs but this clearly indicates that Intel will be ready with its Quad core for Q4 / Q1 2008.