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Intel Pentium D 840 Dual-Core LGA775 Processor Review

Intel Pentium D 840 Dual-Core LGA775 Processor Review - PCSTATS
Abstract: This 90nm processor uses a pair of Prescott cores running at 3.2GHz to bring multi-processing to the desktop in a LGA775 pinless package.
 79% Rating:   
Filed under: CPU / Processors Published:  Author: 
External Mfg. Website: Intel Aug 17 2005   Mike Dowler  
Home > Reviews > CPU / Processors > Intel Pentium D 840

Intel E7230 Server Core Logic

The E7230 is intended as an entry-level business server chipset, using consumer Pentium D and Pentium 4 processors instead of the more expensive enterprise-class Xeon processor.

The chipset supports 800MHz and 1066MHz system bus speeds using DDR II memory exclusively. The Northbridge connects to either a PCI Express x8 I/O interface for high-bandwidth peripherals or an Intel 64-bit PCI hub connected to two PCI-X slots. video can be provided through the PCI Express bus.

The E7230 uses the ICH-7R Southbridge chip like all of Intel's dual-core chipsets, and it receives the same set of features as a result. the full six extra PCI Express lanes are available, as are four SATA II ports and the single IDE controller.

nVidia nForce 4 SLI Intel Edition

While the oldest chipset of the group, the nVidia nForce 4 SLI Intel Edition is also arguably the most advanced, at least in terms of features. It is the only chipset here to currently feature dual-PCI Express videocard operation using nVidia's SLI technology, and it also supports Native Command Queuing through its serial ATA II interfaces.

In other respects, this nVidia chipset is similar to the Intel chipsets, though it does not feature the RAID 10 support, Memory Pipeline Technology and additional PCI Express lanes of the 955X Express.

For more details on the nVidia nForce 4 SLI Intel Edition chipset, see PCSTATS article on the technology right here.

The future

As you might expect, Intel is going to update the current line of 8xx Pentium D processors at least once. Early next year we should see the Pentium D 9xx processors released, starting at the same speed grades as the current line and ramping up to 3.4GHz. The most notable feature addition will be the move to 2MB of L2 cache for each core, doubling the amount found in the 8xx processors. This is in line with Intel's current policy of differentiating subsequent processors releases with new features, since the company is up against a speed limit with it's Pentium 4 processor architecture. The 9xx processors should be produced on a smaller 65nm process, freeing up die space for the extra cache memory and hopefully reducing heat output slightly.

Intel's VT(VanderPool Technology) feature will also likely be added to the Pentium D 9xx processors. VT allows a single processor (or core) to run multiple operating systems in different memory 'containers', making virtual operating systems easier to manage and support. This is still very much a technology for the future though, as current virtual PC software does not take advantage of it.

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Contents of Article: Intel Pentium D 840
 Pg 1.  Intel Pentium D 840 Dual-Core LGA775 Processor Review
 Pg 2.  State of the art CPU
 Pg 3.  Intel's Dual Core Technology
 Pg 4.  Intel 955X Express Chipset
 Pg 5.  Intel 945P/G chipset
 Pg 6.  — Intel E7230 Server Core Logic
 Pg 7.  Pinless LGA775 Package
 Pg 8.  Overclocking Intel's new dual-core processor
 Pg 9.  Benchmarks: SysMark 2004
 Pg 10.  Benchmarks: Winstone 2004, Cinebench 2003
 Pg 11.  Benchmarks: Cinebench 2003 64-bit, Maya
 Pg 12.  Benchmarks: ScienceMark 2.0 in 32-bit and 64-bit
 Pg 13.  Benchmarks: SuperPI, Hexus piFast
 Pg 14.  Benchmarks: Sandra 2005, POVray
 Pg 15.  Benchmarks: PCMark04, PCMark05
 Pg 16.  Benchmarks: 3DMark2001, 3DMark05
 Pg 17.  Benchmarks: Comanche 4, UT2003
 Pg 18.  Benchmarks: UT2004, Doom3
 Pg 19.  Intel's dual-core Workhorse

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