Intel Celeron Dual-Core microprocessors
- 32 KB instruction and 32 KB data cache per core;
- Level 2 cache shared between two cores.
- Support for SSE3 and Supplemental SSE3 instructions. Improvements in Core micro-architecture allow the CPU to execute up to one 128-bit SSE instruction each clock cycle.
- Intel 64 technology, formerly known as Extended Memory 64 Technology, or EM64T.
- Disable bit feature. When supported by operating system, this feature prevents system infection by certain group of viruses and malicious programs.
- Desktop Celeron E3xxx processors, based on newer Wolfdale core, feature Virtualization technology.
Dual-core Celerons include the same power-saving features as other Core-based desktop microprocessors: Extended HALT and Extended Stop Grant modes, and enhanced SpeedStep technology. Performance of Celeron dual-core processors is lower than performance of mid-class Pentium Dual-Core, or high performance Core 2 Duo families, but it's sufficient for many basic office tasks like word processing, browsing, and e-mail.
"Dual-Core" part of the "Celeron Dual-Core" family name was eventually dropped, and the family is currently branded as "Celeron". Mobile Celeron dual-core processors are currently branded as "Mobile Celeron".
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Picture of: Intel Celeron Dual-Core E1200 HH80557PG025D (BX80557E1200 / BXC80557E1200F)
Celeron Dual-Core desktop family replaced single-core Celeron 400 series microprocessors, that were released in the middle of 2007. First dual-core Celerons were based on Allendale core, which, besides the second core, had practically the same features as single-core Celeron 400 series CPUs. In August 2009 Intel introduced Wolfdale-based Celerons. These processors are manufactured using more advanced 0.045 micron technology, have twice larger level 2 cache than Allendale CPUs, support Virtualization technology, and incorporate additional power-saving modes such as Deep Sleep and Deeper Sleep. All Desktop Celeron microprocessors are packaged in 775-land FC-PGA package - the same package that was used by all desktop Pentium Dual-Core and Core 2 Duo/Quad processors, and work in socket 775 motherboards.
Picture of: Intel Mobile Celeron Dual-Core T1400 LF80537NE030512
Like the desktop Celeron processors, dual-core mobile Celeron family is based on two different cores - older Merom core and newer Penryn core. Merom microprocessors were manufactured using 0.065 micro technology, ran up to 1.83 GHz clock frequency and up to 667 MHz bus frequency, and had 512 or 1024 KB level 2 cache. Penryn microprocessors are based on 0.045 micron technology, have higher, up to 2 GHz, core frequency and 800 MHz FSB. Majority of mobile dual-core Celerons are packaged in 478-pin micro-FCPGA package, and work in socket P motherboards. Two mobile processors are manufactured in 479-ball micro-FCBGA package.
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