Intel QuickPath Interconnect
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The Intel QuickPath Interconnect or simply "QuickPath"[1][2] (the official legal name for Common System Interface or "CSI") is a point-to-point processor interconnect being developed by Intel, as a competitor to HyperTransport. QuickPath technology also includes an integrated memory controller.[3] It will replace the Front Side Bus (FSB) for Xeon and Itanium platforms. It is expected to be released in late 2008 and will first be used by Intel's Nehalem[4] and Tukwila[5] processors.
Performance numbers for QuickPath are reported to be 4.8 to 6.4 Gigatransfers per second (GT/s) per direction, and a link can be 5, 10 or 20 bits wide in each direction. Therefore the bandwidth provided by a full width link amounts to 12.0 to 16.0 GB/s per direction, or 24.0 to 32.0 GB/s per link.[6]
The initial Nehalem implementation uses a 20-bit wide 25.6 GB/s link (as reported in the Intel Nehalem Speech on IDF). This 25.6 GB/s link provides exactly double the amount of theoretical bandwidth as Intel's 1600 MHz FSB used in the X48 chipset.
[edit] See also
[edit] References
- ^ The Inquirer: Intel CSI name revealed, retrieved May 16, 2007
- ^ DailyTech report, retrieved August 21, 2007
- ^ Intel Demonstrates Industry's First 32nm Chip and Next-Generation Nehalem Microprocessor Architecture. Retrieved on 2007-12-31.
- ^ VR-Zone report, retrieved July 17, 2007
- ^ Intel’s Tukwila Confirmed to be Quad Core (5 May 2006).
- ^ Realworld Technologies report, retrieved August 28, 2007
- The Inquirer: Intel gets knickers in a twist over Tanglewood
- The Inquirer: Intel's Whitefield takes four core IA-32 shape
- CRN: Intel preps HyperTransport competitor for Xeon, Itanium CPUs
- The Register: Intel's CSI to outperform AMD's Hypertransport
- Real World Tech: Intel Tukwila confirmed to be Quad-core
- ZDNet Asia: Intel server revamp to follow AMD
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