Intel® Core™ i7 Processor Comparison Chart

	Intel® Core™ i7-900 Processor Series (formerly codenamed Bloomfield)		Intel® Core™ i7-800 Processor Series (formerly codenamed Lynnfield)
Socket	LGA-1366		LGA-1156
Chipset	Intel® X58 Express Chipset		Intel® P55 Express Chipset
Memory	3 Channel		2 Channel
	1066 MHz DDR3		1333 MHz DDR3
Graphics support	2x16 PCI-E		1x16, 2x8 PCI-E
Available frequencies	i7-975	3.33 GHz (Extreme Edition)	i7-870	2.93 GHz
	i7-950	3.06 GHz	i7-860	2.8 GHz
	i7-920	2.66 GHz
Cores/threads	4 cores / 8 simultaneous threads
Features	Intel® Turbo Boost Technology¹
	Intel® Hyper-Threading Technology²
	Intel® 64 Architecture³
	Intel® Virtualization Technology⁴
	Intel® Trusted Execution Technology⁵
Learn about Intel® Core™ i7-900 processor series			Learn about Intel® Core™ i7-800 processor series

¹Intel® Turbo Boost Technology	Intel® Turbo Boost Technology requires a PC with a processor with Intel Turbo Boost Technology capability. Intel Turbo Boost Technology performance varies depending on hardware, software and overall system configuration. Check with your PC manufacturer on whether your system delivers Intel Turbo Boost Technology. For more information, see http://www.intel.com/technology/turboboost.
²Intel® Hyper-Threading Technology	Intel® Hyper-Threading Technology (Intel® HT Technology) requires a computer system with a processor supporting Intel HT Technology and an Intel HT Technology-enabled chipset, BIOS, and operating system. Performance will vary depending on the specific hardware and software you use. For more information including details on which processors support Intel HT Technology, see here.
³Intel® 64 Architecture	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. Performance will vary depending on your hardware and software configurations. Consult with your system vendor for more information.
⁴Intel® Virtualization Technology	Intel® Virtualization Technology requires a computer system with an enabled Intel® processor, BIOS, virtual machine monitor (VMM) and, for some uses, certain computer system software enabled for it. Functionality, performance or other benefits will vary depending on hardware and software configurations and may require a BIOS update. Software applications may not be compatible with all operating systems. Please check with your application vendor.
⁵Intel® Trusted Execution Technology	No computer system can provide absolute security under all conditions. Intel® Trusted Execution Technology (Intel® TXT) requires a computer system with Intel® Virtualization Technology, an Intel TXT-enabled processor, chipset, BIOS, Authenticated Code Modules and an Intel TXT-compatible measured launched environment (MLE). The MLE could consist of a virtual machine monitor, an OS or an application. In addition, Intel TXT requires the system to contain a TPM v1.2, as defined by the Trusted Computing Group and specific software for some uses. For more information, see here.