Intel Celeron D processor family
Prescott and Cedar Mills Celeron D microprocessors have a few improvements over Northwood Celerons. The most important improvements in all versions of Celeron D microprocessors are larger size of level 2 cache, and 33% faster Front-Side Bus frequency. A number of Celeron D CPUs 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 included both Execute Disable bit capability and 64-bit mode.
- The second generation of Celeron D microprocessors doubled the size of level 2 cache.
Celeron D brand was used only for desktop microprocessors, and is currently obsolete. All budget-class desktop processors at this time are branded as "Celeron". All mobile Celeron processors from Celeron D era were branded as Celeron M. There were three Celeron D CPUs that were offered as embedded parts: Celeron D 335, 341 and 352.
Celeron D processors were manufactured in 478-pin micro-PGA package for socket 478 motherboards, and 775-land LGA package for socket 775 motherboards.
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Picture of: Intel Celeron D 320 - RK80546RE056256 / NE80546RE056256 (BX80546RE2400C)
First generation of Celeron D microprocessors was introduced in June 2004, three days after releasing Pentium 5x0 series of processors. This generation was based on 0.09 micron Prescott core, had 533 MHz Front Side Bus frequency and 256 KB level 2 cache. The first Celeron D CPUs, introduced in June, were manufactured in socket 478 package and incorporated only basic features of Prescott core, such as support for SIMD instructions up to SSE3, and several low-power features. Socket 478 Celerons were followed by more feature-rich socket 775 Celeron D microprocessors, that added Execute disable bit feature, 64-bit instruction set and featured a bit higher maximum clock frequency.
Picture of: Intel Celeron D 352 - HH80552RE088512 (BX80552352)
Next generation of Intel Celeron D CPUs utilized a variation of Cedar Mills core. These CPUs were still limited to 533 MHz FSB, but included twice larger size of L2 cache, and, thanks to lower core voltage and more modern 65nm manufacturing process, had lower power consumption. All Celeron D microprocessors from this generation supported Execute disable bit and 64-bit instructions. Cedar Mills Celeron Ds were manufactured in 775-pin LGA package, and required socket 775 motherboards.
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