Intel 520J - Pentium 4 2.80GHz 800MHz 1MB Socket 775 CPU Datasheet page 2

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The Intel Pentium 4 processor in the 775-land package on 90 nm process may contain design defects or errors known as errata which may cause
the product to deviate from published specifications. Current characterized errata are available on request.
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Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across
different processor families.
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Hyper-Threading Technology requires a computer system with an Intel
Technology enabled chipset, BIOS and operating system. Performance will vary depending on the specific hardware and software you use. See
/www.intel.com/info/hyperthreading/
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Intel Extended Memory 64 Technology (Intel
drivers and applications enabled for Intel EM64T. Processor will not operate (including 32-bit operation) without an Intel EM64T-enabled BIOS.
Performance will vary depending on your hardware and software configurations. See
details on which processors support EM64T or consult with your system vendor for more information.
Enabling Execute Disable Bit functionality requires a PC with a processor with Execute Disable Bit capability and a supporting operating system.
Check with your PC manufacturer on whether your system delivers Execute Disable Bit functionality.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
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for more information including details on which processors support HT Technology.
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EM64T) requires a computer system with a processor, chipset, BIOS, operating system, device
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Pentium 4 processor supporting Hyper-Threading Technology and an HT
http://www.intel.com/info/em64t
http:/
for more information including
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