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Intel® Processor Numbers
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Processor
Number		 Architecture Cache Clock
Speed		 Front
Side
Bus		 Intel®
64Φ		 Execute
Disable
Bit°
560 65 nm 1 MB L2 2.13 GHz 533 MHz
550 65 nm 1 MB L2 2.00 GHz 533 MHz
540 65 nm 1 MB L2 1.86 GHz 533 MHz
530 65 nm 1 MB L2 1.73 GHz 533 MHz
440 65 nm 512 KB L2 2.0 GHz 800 MHz
430 65 nm 512 KB L2 1.80 GHz 800 MHz
420 65 nm 512 KB L2 1.60 GHz 800 MHz

Φ 64-bit computing on Intel® architecture requires a computer system with a processor, chipset, BIOS, operating system, device drivers and applications enabled for Intel® 64 architecture. Processors will not operate (including 32-bit operation) without an Intel 64 architecture-enabled BIOS. Performance will vary depending on your hardware and software configurations. 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.