Intel's first 64 bit processor
The Itanium sometimes referred to as IA-64
Windows XP 64-bit Edition.
Windows XP Professional x64 Edition
Windows XP 64-Bit Edition.
There is no direct relationship whatsoever between the two. They are sometimes brought up in the same context because the Itanium is widely regarded as being a large and expensive failure, although they are still manufactured, sold, and supported by Intel and many manufacturers.
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
Itanium
44 bits
Existence. There is no such thing as an "Intel Other" processor.
That depends on a few different factors. The highest-end servers will probably want Itanium processors. Mid-range servers would more likely be equipped with Xeons.
PGA.
50 bits.....