Kentsfield is the code name of the first Intel desktop Core 2 Quad and quad-core Xeon CPUs,[1] released on November 2, 2006.

Analogous to the Pentium D branded CPUs, the Kentsfields comprise two separate silicon dies (each equivalent to a single Core 2 Duo) on one MCM.

[3] This results in lower costs, but a lesser share of the bandwidth from each of the CPUs to the northbridge than if the dies were each to sit in separate sockets as is the case for the AMD Quad FX platform.

To take a specific example, multi-threaded games such as Crysis and Gears of War which must perform multiple simultaneous tasks such as AI, audio and physics benefit from quad-core CPUs.

The first Kentsfield XE processor, the Core 2 Extreme QX6700 (product code 80562) with a clock speed of 2.67 GHz, was released on November 2, 2006 at US$999.

Similarly to the previous dual-core Extreme processors, CPUs with the Kentsfield XE core had unlocked multipliers.