by Rob Williams on February 9, 2009 in Processors
The benefits of a low-TDP processor are obvious, but a usual downside is also obvious: low clock speeds. Intel’s changing that thinking with their Core 2 Quad “S” series, which includes the Q9550S, Q9400S and also the Q8200S. Compared to their non-“S” variants, they draw less power and run cooler, all while retaining the performance they’ve become known for.
Synthetic benchmarks have typically been favored for performance testing, but the results they provide can be fairly abstract, and the methods they use to assign their scores can be dubious at times. By contrast, real-world application benchmarks provide performance metrics that apply directly to real-world usage, and we endeavor to apply both in our performance comparisons.
SYSmark 2007 Preview from BAPCo is a special case, because its synthetic scores are derived from tests in real-world applications. However, we still believe that synthetic benchmarking scores are best used to directly compare the performance of one piece of hardware to another, and not for developing an impression of real-world performance expectations. SYSmark is more useful than most synthetic benchmarking programs in our opinion, because its tests emulate tasks that people actually perform, in actual software programs that they are likely to use.
The benchmark is hands-free, using scripts to execute all of the real-world scenarios identically, such as video editing in Sony Vegas and image manipulation in Adobe Photoshop. At the conclusion of the suite of tests, five scores are delivered: an E-learning score, a Video Creation score, a Productivity score, and a 3D Performance score, as well as an aggregated ‘Overall’ score. These scores can still be fairly abstract, and are most useful for direct comparisons between test systems.
A quick note on methodology: SYSmark 2007 requires a clean install of Windows Vista 32-bit to run optimally. Before any testing is conducted, the hard drive is first wiped clean, and then a fresh Windows installation is conducted, then lastly, the necessary hardware drivers are installed. The ‘Three Iterations’ test suite is run, with the ‘Conditioning Run’ setting enabled. Then the results from the three runs are averaged and rounded up or down to the next whole number.
The results exhibited here are on par with what we expected, with identical performance between both Q9400’s overall. Interestingly enough though, despite the Q9450’s sharing of their clock speed, the extra L2 cache helped it pull ahead by another 10 points.
Where the Q8200S is concerned, our findings there are also what we expected. Although we haven’t tackled it much before, we can see that SYSmark, while offering a mostly-realistic simulation of computing scenarios, isn’t able to push Quad-Cores as much as we’d like. That’s why we see the Dual-Core E7200 keeping close to our Q8200S, despite the fact that the latter is much more capable for heavier multi-tasking scenarios.