Cache is very high-speed memory that stores frequently used instructions and data. Cache information reported by the utility may include level 3, level 2, and level 1 data and instruction cache sizes, depending on what types of cache are present and enabled in the processor. In processors with multiple cores, the cache blocks may be separate for each core (2 x 1MB) or shared across cores (2 MB). The Frequency Test section of the utility reports the cache size that the tested processor core has access to, for the highest-level cache in the processor. The CPUID Data section of the utility reports the total number of cache blocks available in the processor package.
The Chipset ID field is used to provide information related to the Intel® Upgrade Service. For more information, visit Intel® Upgrade Service.
Gigatransfers per second (GT/s)
Gigatransfers per second (GT/s) refers to the effective rate of data transfers on the Intel® QuickPath Interconnect, which is measured in billions of transfers per second.
Integrated memory controller
The Integrated Memory Controller is a key feature in Intel® QuickPath Architecture. Integrating the memory controller into the Intel® Processor silicon die improves memory access latency and enables available memory bandwidth to scale with the number of processors added. See more information on Intel® QuickPath Technology.
Intel® Hyper-Threading Technology
Intel® Hyper-Threading Technology (Intel® HT Technology) enables the processor to execute multiple threads (a part of a program) in parallel, so your highly threaded software can run more efficiently and you can multitask more effectively than ever before. See more information and details on which processors support Intel® HT Technology.
Intel® 64 Architecture
Intel® 64 architecture is an enhancement to Intel's IA-32 architecture. The enhancement allows the processor to run 64-bit code and access larger amounts of memory.
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.
Intel® QuickPath Interconnect
Intel® QuickPath Interconnect provides high-speed point-to-point connections between processors and other components in platforms designed with Intel QuickPath Architecture. Visit Intel's Web site for more information on Intel QuickPath Technology.
Intel® SpeedStep® Technology
Intel® SpeedStep® Technology allows the system to operate in maximum performance mode when plugged into an AC power source, and in battery-optimized performance mode when running on battery power. Enhanced Intel SpeedStep technology allows the system to dynamically adjust processor voltage and core frequency according to the power source and application demand. The results are decreased power consumption and decreased heat production.
Intel® Virtualization Technology
Intel® Virtualization Technology is a set of hardware enhancements to Intel server and client platforms that can improve virtualization solutions. Virtualization enhanced by Intel Virtualization Technology will allow a platform to run multiple operating systems and applications in independent partitions.
A processor being operated above its frequency specification (overclocked) may become unstable, produce unpredictable or erroneous results. These conditions might not be readily apparent and the life of the processor may also be shortened. Intel’s warranty does not cover processors that have been overclocked.
- FC-PGA2 - the Flip Chip Pin Grid Array 2 package is a more compact version of the FC-PGA package. It appears as a smaller thin square of green material with shorter and more closely separated gold pins. An integrated heat spreader may obscure the top of FC-PGA2 processors.
- uPGA/BGA - a Micro Pin Grid Array or Ball Grid Array package
- OOI - an OLGA (Organic Land Grid Array) On Interposer package. The interposer translates the fine pitch pads of the OLGA package to a pin field, which connects into the socket on the system main board.
- uFCPGA or uFCPGA2 - a Micro Flip Chip Pin Grid Array package
- uFCBGA or uFCBGA2 - a Micro Flip Chip Ball Grid Array package
- LGA1366 - a 1366 pin Land Grid Array package
- LGA1156 - a 1156 pin Land Grid Array package
- LGA775 - a 775 pin Land Grid Array package
- LGA771 - a 771 pin Land Grid Array package
For more information, see the package-type guide for Intel® Desktop Processors.
Platform compatibility guide
Platform Compatibility Guide (PCG) encompasses all of the platform power requirements necessary for the proper functionality of the processor as it relates to the motherboard. PCG also provides an easier method of identifying which processor works with which motherboard.
The processor family can be useful for validating information from the "Quick Reference Guide" available for your specific processor family.
The "model" number identifies to Intel the microprocessor’s manufacturing technology and design generation (for example, Model 4). Model number is used along with family to determine which specific processor in a family of processors that your computer contains. Intel may need the processor model number to identify the particular processor.
Intel uses processor numbers to enable you to quickly compare processors and analyze more than one processor feature during the selection process. Processor numbers should be used to differentiate between the relative overall features within a certain processor family (for example, within the Intel® Pentium® 4 Processor Family) and within a numbering sequence (for example, 550 versus 540). Processor numbers are not a measurement of performance. See more information on Intel® Processor numbers.
The "revision" number indicates version information for Intel processors within a stepping. The revision information may be useful when communicating with Intel to determine the processor’s internal characteristics.
The "stepping" number indicates design or manufacturing revision data for production Intel® Microprocessors (for example, Stepping 4). Unique stepping numbers indicate versions of processors to facilitate change control and tracking. Stepping also allows an end user to identify more specifically which version of the processor their system contains. Intel may need the classification data to determine the microprocessor’s internal design or manufacturing characteristics.
"Type" indicates whether the Intel® Microprocessor was designed for installation by a consumer (end user) or by a professional PC system integrator, service company, or manufacturer. Type 1 indicates that the microprocessor was intended for installation by a consumer (for example, upgrade such as an Intel® OverDrive® Processor). Type 0 indicates that the microprocessor was intended for installation by a professional PC system integrator, service company, or manufacturer. The processor type depends on whether the processor is a single processor, dual processor, or an Intel® OverDrive Processor.
The reported frequency is the operating frequency of the processor and system bus as measured by the Intel® Processor Identification Utility. The utility may report a current operating frequency that is slightly higher or lower than the expected frequency for your processor. Frequency differences within 1% are due to slight variations in the manufacturing of system components, and are considered to be operating within specifications.
Streaming SIMD extensions
Streaming SIMD Extensions (SSE) are new instructions designed to reduce the overall number of instructions required to execute a particular program task, which can result in an overall performance increase. The Intel® Processor Identification Utility reports the presence of SSE, SSE2, SSE3, and SSE4 instruction sets.
System bus overclocking
Operation of the system bus above the processor’s specified system bus frequency (operating the system bus at 533 MHz with a processor intended for operation on a 400 MHz system bus). Overclocking typically forces the processor to run at a frequency above its intended specification. Refer to the overclock definition for more information.
The Frequency Test section of the utility provides information regarding the operating status of the selected processor.
The CPU Technologies section of the utility displays the Intel® processor technologies and features present in the selected processor.
The CPUID Data section of the utility identifies the Intel® Processor(s) in the system.
The Save feature enables the processor information to be saved into a text file.
Web update feature
The Web Update feature enables updating to the latest version of the Intel® Processor Identification Utility.