Intel Celeron D processor family

Intel Celeron D family is a new brand name for desktop Celeron processors. The fastest Celeron CPUs were based on 0.13 micron Northwood core. The Celeron D processors are based on the next two Pentium 4 cores - 0.09 micron Prescott core and 0.065 micron Cedar Mill core.

There are three different versions of Celeron D processors based on Prescott core:

• Celeron D in 478-pin micro FC-PGA package for socket 478 motherboards. These processors include basic features of Prescott core, and have neither Execute Disable bit capability, nor 64-bit execution mode.
• First Celeron D processors in 775-land FC-LGA package offered Execute Disable bit capability.
• Newer Celeron D CPUs in 775-land package include both Execute Disable bit capability and 64-bit mode.

Overall, Prescott Celeron D microprocessors have a few improvements over Northwood Celeron processors - 33% faster Front-Side Bus frequency, twice larger level 2 cache, and 64-bit mode in some Celeron D Prescott CPUs.

64-bit mode is also included in Celeron D microprocessors based on Cedar Mill core. Besides that these CPUs also have larger level 2 cache - 512 KB as opposed to 256 KB on Prescott Celeron D processors.