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Intel® Core™2 Extreme Processor
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Intel® Core™2 Extreme processor  
All Intel® Core™2 Extreme processors feature:
Intel® Virtualization Technology±
Enhanced Intel SpeedStep® Technology
Intel® Execute Disable Bit°
Intel® 64 architecture±
Processor Number
Δ 		Cache Clock Speed Front Side Bus Form Factor Dual-Core Quad-Core
 45 nm
QX9775¹ 12MB L2 3.20 GHz 1600 MHz Desktop   checkmark
QX9770 12MB L2 3.20 GHz 1600 MHz Desktop   checkmark
QX9650 12MB L2 3 GHz 1333 MHz Desktop   checkmark
X9000 6 MB L2 2.80 GHz 800 MHz Mobile checkmark  
 65 nm
QX6850 8 MB L2 3 GHz 1333 MHz Desktop   checkmark
QX6800 8 MB L2 2.93 GHz 1066 MHz Desktop   checkmark
QX6700 8 MB L2 2.66 GHz 1066 MHz Desktop   checkmark
X7900 4 MB L2 2.80 GHz 800 MHz Mobile checkmark  
X7800 4 MB L2 2.60 GHz 800 MHz Mobile checkmark  
X6800 4 MB L2 2.93 GHz 1066 MHz Desktop checkmark  
 
 
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± Intel® Virtualization Technology (Intel® VT), Intel® Trusted Execution Technology (Intel® TXT), and Intel® 64 architecture require a computer system with a processor, chipset, BIOS, enabling software and/or operating system, device drivers and applications designed for these features. Performance will vary depending on your configuration. Contact your 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.

Δ Intel® processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See www.intel.com/products/processor_number/ for details.

1 QX9775 is compatible only with the Intel® Desktop Board DX5400 supporting a dual-socket configuration.