Official Intel Core 2 Duo Processor E4500 Free Driver Download for Windows 10, 8.1, 8, 7, 2008, Vista. Intel 946GZ Express Chipset Family Driver Download. Support Home Drivers & Software. Downloads for Intel® Core™2 Duo Processor E4500 (2M Cache, 2.20 GHz, 800 MHz FSB). 2/2/2016: Intel® Processor Identification.
Bus Speed A bus is a subsystem that transfers data between computer components or between computers. Types include front-side bus (FSB), which carries data between the CPU and memory controller hub; direct media interface (DMI), which is a point-to-point interconnection between an Intel integrated memory controller and an Intel I/O controller hub on the computer’s motherboard; and Quick Path Interconnect (QPI), which is a point-to-point interconnect between the CPU and the integrated memory controller. Enhanced Intel SpeedStep® Technology Enhanced Intel SpeedStep® Technology is an advanced means of enabling high performance while meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep® Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep® Technology builds upon that architecture using design strategies such as Separation between Voltage and Frequency Changes, and Clock Partitioning and Recovery. All information provided is subject to change at any time, without notice.
Intel may make changes to manufacturing life cycle, specifications, and product descriptions at any time, without notice. The information herein is provided 'as-is' and Intel does not make any representations or warranties whatsoever regarding accuracy of the information, nor on the product features, availability, functionality, or compatibility of the products listed. Please contact system vendor for more information on specific products or systems. 
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Refer to Datasheet for formal definitions of product properties and features. ‡ This feature may not be available on all computing systems. Please check with the system vendor to determine if your system delivers this feature, or reference the system specifications (motherboard, processor, chipset, power supply, HDD, graphics controller, memory, BIOS, drivers, virtual machine monitor-VMM, platform software, and/or operating system) for feature compatibility. Functionality, performance, and other benefits of this feature may vary depending on system configuration. System and Maximum TDP is based on worst case scenarios. Actual TDP may be lower if not all I/Os for chipsets are used.
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“Announced” SKUs are not yet available. Please refer to the Launch Date for market availability. Some products can support AES New Instructions with a Processor Configuration update, in particular, i7-2630QM/i7-2635QM, i7-2670QM/i7-2675QM, i5-2430M/i5-2435M, i5-2410M/i5-2415M. Please contact OEM for the BIOS that includes the latest Processor configuration update. Max Turbo Frequency refers to the maximum single-core processor frequency that can be achieved with Intel® Turbo Boost Technology. See for more information. Processors that support 64-bit computing on Intel® architecture require an Intel 64 architecture-enabled BIOS.