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Date: September 2nd, 2007
Article by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Intel
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PRODUCT SPECIFICATIONS & FEATURES (From Intel)




Features



Outstanding dual-core performance


With its two execution cores, the Intel Core Duo processor is optimized for multi-threaded applications and multitasking. You can simultaneously run multiple demanding applications such as graphics-intensive games or serious number-crunching programs - while downloading music or running virus-scanning security programs in the background.


Power efficiency


Demand for greater power efficiency in computing is on the rise from desktop to laptop PCs. With an Intel Core Duo processor, you get a balance of great dual-core computing capabilities and power savings. Its enhanced voltage efficiency supports cooler and quieter system designs as compared to traditional desktop and laptop PCs. And thanks to the innovative energy efficient technologies built-in, the Intel® Core™ Duo processor is able to transfer power only to those areas of the processor that need it, thereby enabling laptops to save power and desktops to have thinner, sleeker designs.


A vibrant media experience


The Intel Core Duo processor enables your Intel Viiv technology and Intel Centrino Duo mobile technology multimedia experience to be all the more vibrant. Featuring Intel® Digital Media Boost, the Intel® Core™ Duo processor enables accelerating technologies for applications such as CAD tools, 3D and 2D modeling, video editing, digital music, digital photography and gaming. This is one of the key ingredients that help Intel Viiv technology and Intel Centrino Duo mobile technology to give you a truly rich multimedia experience.


Integrated Processor Technology Features



Enhanced Halt State (C1E)


"Whenever the OS executes the halt instruction, the CPU enters what is known as the halt state.  Architecturally, what's going on in a halt state is the clock signal is shut off to the CPU for some period of time. With no clock signal, none of the logic in the chip will do anything and thus power consumption is reduced.  Performance is also significantly reduced; however, the halt instruction isn't usually called during application usage, so the performance aspects of the halt state aren't very important.

The problem with the halt state is that it does nothing to reduce voltage, only current draw by stopping clocks from going to the CPU.  Since Power varies linearly with both current and voltage (P = I * V), you're effectively only addressing half of the problem. The Enhanced Halt State, as Intel calls it, does two things: it reduces the clock speed of the CPU by decreasing the clock multiplier down to its minimum value (on the EE 965 series, that's 14x, or 2.8GHz), then reducing the voltage.  The clock speed is reduced and then the voltage is dropped, to maintain stability. 

Intel insists that the enhanced halt state is a significantly lower power state than the conventional halt state, thanks to the reduction in voltage in addition to the reduction in clock speed.  While the standard halt state causes a linear reduction in power, Intel's enhanced halt state causes an exponential decrease in power, potentially offering better power savings than the standard halt state.  The real world impact obviously depends on how idle your system happens to be."


Enhanced Intel Speedstep® Technology


Enhanced Intel SpeedStep technology allows the system to dynamically adjust processor voltage and core frequency, which can result in decreased average power consumption and decreased average heat production. By decreasing power and heat on Desktop PCs, system builders can (depending on system configurations) potentially lower acoustics, and even develop more innovative small form factor designs. Additionally, this feature can help address power concerns in companies with sites approaching the limits of bounded electrical infrastructures. Combined with existing power saving features, Enhanced Intel SpeedStep technology can provide an excellent balance between providing power when you need it and conserving it when you don't.


Execute Disable Bit


Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.


Intel® EM64T


Certain boxed Intel desktop processors have support for Intel® Extended Memory 64 Technology1 (Intel® 64), delivering flexibility for operating systems and future software that supports 64-bit computing.

In order to take advantage of this technology, an entire 64bit hardware & software solution stack is required, ranging from processors and device drivers to operating systems, tools and applications. 

The primary value to users lies in potential performance improvements achieved by the ability to address >4GB of both virtual and physical memory, the latter also requiring platform/motherboard designs including this much system memory.

Digital media applications are expected to see benefits from Intel 64 1 in their ability to process high quality audio and video, as well as 3D rendering.


Intel® Thermal Monitor 2


The Intel Core 2 Duo processor in the 775-land package also supports a power managment capability known as Thermal Monitor 2. This mechanism provides an efficient mechanism for limiting the processor temperature by reducing power consumption within the processor. Thermal Monitor 2 is enabled, and a high temperature situation is detected, the enhanced Thermal Control Circuit causes the processor to adjust its operating frequency and input voltage. This combination of reduced frequency and voltage results in a decrease in processor power consumption. Once the processor has sufficiently cooled and a minimum activation time has expired, the operating frequency and voltage transition back to the normal system operating point.


Intel® Virtualization Technology


Intel ® Virtualization Technology ? delivers improved computing benefits for home users, business users, and IT managers alike. This paper describes the unique requirements that embedded systems and communications infrastructure equipment place on virtualized environments and shows how Intel is working with a number of third parties to extend the benefits of Intel Virtualization Technology to these market segments. Bounded real-time performance can be maintained while using virtualization to consolidate systems; system uptime can be increased by enabling software failover without redundant hardware; and software migration can be performed without bringing down the application. Virtualization also allows legacy applications to co-exist with new applications by executing both software environments in parallel, and it provides the means for applications to take advantage of multi-core processors without re-architecting for multi-threaded execution.

 

 


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