Intel Celeron D family is a new brand name for desktop
Celeron processors based on NetBurst
microarchitecture. The last generation of NetBurst Celeron CPUs were
manufactured on 0.13 micron technology and used Northwood core. The
Celeron D processors are produced on more advanced 0.09 micron
(modified Prescott core, also called Prescott-256) and 0.065 micron
(modified Cedar Mill core, also called Cedar Mill-512) technology.
Prescott Celeron D microprocessors have a few improvements
over Northwood Celeron processors. The most important improvements in
all versions of Celeron D microprocessors are twice as large level 2
cache and 33% faster Front-Side Bus frequency. Some CPUs with
the Prescott core have additional features:
- First Celeron D processors in 775-land FC-LGA package included
Execute Disable bit capability.
- Newer Celeron D CPUs in 775-land package include both Execute
Disable bit capability and 64-bit mode.
Celeron D processors in 478-pin micro FC-PGA package had only basic
features of the Prescott core, and didn't support Execute Disable bit
feature or 64-bit execution mode.
The size of level 2 cache was doubled in the next generation of
Celeron D processors based on Cedar Mill core. Besides larger L2
cache, these CPUs had execute disable bit feature and supported
64-bit mode. Cedar Mill processors were manufactured only in
775-land FC-LGA (socket 775) package.
Celeron D brand was used only for desktop microprocessors. All mobile
Celeron processors were and still branded as Celeron M. There
were three Celeron D CPUs that were offered as embedded parts:
Celeron D 335,
341 and
352.
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