Tukwila is the code-name for the generation of Intel's Itanium processor family following Itanium 2 and Montecito. It was released on 8 February 2010 as the Itanium 9300 Series. While its features have not been publicly disclosed in detail, it utilizes both multiple processor cores (multi-core) and SMT techniques. The engineers said to be working on this project are from the Alpha project, specifically those who worked on the Alpha 21464 (EV8), which was focused on SMT.
The processor has two to four cores per die and up to 24 MB L3 of on-die cache. They are the first batch of processors to contain more than 2 billion transistors on a single die., which is added up from:
- core logic — 430 million.
- System interface — 157 million
- L3 cache — 1,420 million
- I/O logic — 39 million
- Chip total — 2.046 billion
Die size is 21.5×32.5 mm or 698.75 mm²
 Xeon compatibility
It has been publicly disclosed that Tukwila and its associated chipset would bring socket compatibility between Intel's Xeon and Itanium processors, by introducing a new interconnect called Intel QuickPath Interconnect (QuickPath, previously known as Common System Interface or CSI). This ultimate endeavor would help reduce product development costs for both Intel and its partners, by allowing for greater reuse of components and manufacturing processes. Tukwila is reported to have four "full" QuickPath links and two "half" links.
The released Itanium 9300-series processors are using a separate socket, LGA 1248, which is incompatible with Xeon processors and motherboards.
 Comparison table
|Core Clock with
Intel Turbo Boost (GHz)
|L3 Cache (MiB)||QPI speed
|February 2010 Price||Comments|
|9310||2||4||1.6||N/A||10||4.8||130||$946||Low power consumption|
|9330||4||8||1.46||1.6||20||4.8||155||$2,059||Performance per watt|
More recently an Intel representative stated that Intel would maintain a two year development cycle for Itanium, implying Poulson would be released in Q1 2012.
- Michael Kanellos (December 18, 2003). "Intel changes code name of future Itanium".
- BBC News (February 4, 2008). "Chips pass two billion milestone".
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- Intel shows off Tukwila, first 2 billion transistor CPU
- "Intel Changes CPU Road Map". PC World. October 25, 2005.
- "Intel’s Tukwila Confirmed to be Quad Core". 5 May 2006.
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- Intel Server and Workstation Roadmap Image
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