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NVIDIA MCP78S - Hybrid SLI Instant IGP/GPU Switching PDF Print E-mail

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Along with the upcoming AMD RS780 chipset that includes DirectX 10 compliant IGP solutions, the NVIDIA MCP78S chipset is similar. One of the primary differences is the utilization of the IGP and GPUs. Power consumption has become a major concern for consumers, this is due to the ever-increasing energy demands that each new generation of technology presents. The main problem is how to push the envelope of performance, while minimizing power consumption. NVIDIA has managed to implement a way to reduce the power draw from the highest consumer in a desktop system, which is the discrete video card.

Besides the standard six Sata II ports, twelve USB ports, Gigabit Ethernet, and 2600MT/s HyperTransport 3.0 bus, the MCP78S chipset gives the user the ability to pick and choose between integrated and discrete GPUs. NVIDIA has been working on this project for quite some time, but it was initially intended for mobile markets and was code named “Power SLI”. Back in June of this year, the project was renamed Hybrid SLI and had yet to mention desktop usages.

All previous attempts to use this method of power saving involved a bothersome process that required a reboot of the computer. With NVIDIA’s execution, this process is instantaneous. During normal operations, such as office work or web browsing, the discrete GPU can be disabled. The entire graphics workload then transfers to the IGP. However, when more intense operations are in need, such as gaming or Folding@home, the discrete GPU can be initiated. This is an ingenious method that saves not only electricity, but also the life of those 500$ video cards. Always a good feature for gaming machines that run 24/7 like ours.

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Expect the debut of the MCP78S in Q1 2008. 780 based motherboards should follow suite. Hexus.net ran across a photo contained in Abit’s product catalog that details the A-N78HD motherboard that is launching January 2008. The actual real world power savings this technology provides should be interesting to see.



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Copyright (C) 2007 Alain Georgette / Copyright (C) 2006 Frantisek Hliva. All rights reserved.

 
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