Execute Disable Bit allows the processor to classify areas in memory where application code can execute and where it cannot.
Execute Disable Bit (EDB)Intel's Execute Disable Bit function can prevent certain classes of malicious "buffer overflow" attacks when combined with a supporting operating system. Intel EM64T also provides support for 64 bit computing to help handle the applications of tomorrow. Scalability and Performance with Intel EM64TIntel Extended Memory 64 Technology (Intel EM64T) can improve performance by allowing the system to address more than 4 GB of both virtual and physical memory. Combined with existing power saving features, EIST may provide an excellent balance between providing power when you need it and conserving power when you don’t. Enhanced Intel SpeedStep Technology (EIST)EIST allows the system to dynamically adjust processor voltage and core frequency to decrease average power consumption and average heat production. In the home, Intel VT allows creating unique user environments for multiple family members using the same platform simultaneously. For business, Intel VT offers improved manageability, limiting downtime and maintaining worker productivity by isolating computing activities into separate partitions. Supports Intel Virtualization Technology (Intel VT)With Intel VT, one hardware platform functions as multiple "virtual" platforms. The powerful processor delivers serious performance on the ultra-demanding games of today and tomorrow. Intel Core 2 Quad-core ProcessorWith four processing cores, the multitasking monster Quad-Core Intel Core 2 processor delivers twice the performance on highly-threaded applications, taking your desktop PC experience into a completely new realm of mega power. 
Learn more about Intel-powered ultrabooks. Game play can achieve even greater visualization and realism as tasks such as artificial intelligence (AI), physics, and rendering can be distributed across each of the four complete execution cores and run in parallel. The evolving set of threaded multi-media applications, including digital content creation, will shine as users are able to complete tasks faster. The Intel Core 2 Quad processor is at the center of today’s most interactive and content rich software experiences. Pioneer the new world of quad-core and unleash the power of multithreading. Whether you're creating multimedia, annihilating your gaming enemies, or running compute-intensive applications at one time, new quad-core processing will change the way you do everything. Are you a leader of the pack hunting for monster performance? Well the hunt ends here! With four execution cores, the Intel Core 2 Quad processor blows through processor-intensive tasks in demanding multitasking environments and makes the most of highly threaded applications.
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