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64 bit Editions of Windows Evaluation Guide - Technology and Trends

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<strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong><br />

<strong>Evaluation</strong> <strong>Guide</strong><br />

Section 5<br />

Comparing 32 <strong>bit</strong> <strong>Windows</strong><br />

to <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong><br />

<strong>Windows</strong><br />

Section 5 –Comparing32 <strong>bit</strong> <strong>Windows</strong> to <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong><br />

Section Summary<br />

� The <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong> environment is a solid platform for <strong>64</strong> <strong>bit</strong><br />

applications <strong>and</strong> high-end server needs. The <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong> break<br />

through 32 <strong>bit</strong> <strong>Windows</strong> memory barriers <strong>and</strong> increases performance, reliability<br />

<strong>and</strong> scalability <strong>of</strong> memory-intensive applications. The <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong><br />

architecture allows more efficient processing <strong>of</strong> extremely large data. It also<br />

supports 16 terabytes <strong>of</strong> flat virtual memory, breaking the 4GB memory limit <strong>of</strong> 32<br />

<strong>bit</strong> <strong>Windows</strong>. The <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong>, along with the Itanium processor,<br />

also provide an increase in performance through more floating-point accuracy<br />

<strong>and</strong> computing capability. The <strong>64</strong> <strong>bit</strong> <strong>Editions</strong> <strong>of</strong> <strong>Windows</strong> also improve reliability<br />

through its Machine Check Architecture (MCA).

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