Overclocking Core 2 Duo: Power Versus Performance
Sunday, June 7, 2009
Overclocking remains the most popular way of tweaking and tuning for performance. After all, it's able to serve up tons of extra performance at no extra cost. However, there are limits to overclocking if you care about maintaining a reasonable balance between performance and power consumption—additional clock speeds result in much higher power consumption. We took a P45 motherboard from MSI and a Core 2 Duo E8600 processor and found the answer to the following question: What is the best clock speed for this Core 2 Duo processor? If the title of this one looks familiar, it's because we've already conducted this same experiment with Core i7 and Phenom II processors. If you missed those explorations, feel free to check them out as well.
P45 and Core 2 Duo Are Still Around
Although everyone in the performance circles seems to be talking about the Intel Core i7 and AMD Phenom II processors, the good old Core 2 Duo—with its efficient dual-core design—will remain popular for many months to come. Although the competing Intel quad-core CPUs offer significantly better performance, they are more expensive and typically require new motherboards as well as DDR3 memory.
This will also be the case for Intel’s upcoming product refresh, as the 5-series chipset (Ibex Peak) will introduce Socket LGA 1156 and new processors: the Lynnfield quad-cores. The result will be improved performance, which we expect to fill the gap between Core 2 Quad and Core i7, but the platform will not be significantly more efficient than a Core 2 Quad configuration—just slightly more expensive. Ibex Peak clearly is about features and innovation, first and foremost. For these reasons, Core 2 Duo will remain attractive for a while. Also, consider that many applications still don’t benefit from multiple processing cores (and many don’t even need more than two for speedy execution).
This will also be the case for Intel’s upcoming product refresh, as the 5-series chipset (Ibex Peak) will introduce Socket LGA 1156 and new processors: the Lynnfield quad-cores. The result will be improved performance, which we expect to fill the gap between Core 2 Quad and Core i7, but the platform will not be significantly more efficient than a Core 2 Quad configuration—just slightly more expensive. Ibex Peak clearly is about features and innovation, first and foremost. For these reasons, Core 2 Duo will remain attractive for a while. Also, consider that many applications still don’t benefit from multiple processing cores (and many don’t even need more than two for speedy execution).
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