A
chip packaging design used in Intel's newer
Pentium II chipsets, starting with the
Xeon CPU. While the
Slot 1 interface features a 242-contact connector, Slot 2 uses a somewhat wider 330-contact connector. The biggest difference between Slot 1 and Slot 2, though, is that the Slot 2 design allows the CPU to communicate with the
L2 cache at the CPU's full
clock speed. In contrast, Slot 1 only supports communication between the L2 cache and CPU at half the CPU's clock speed.