Conroe Buying Guide: Feeding the Monster

General Performance

The PCMark05 benchmark, developed by Futuremark, was designed for determining overall system performance for the typical home computing user. This tool provides both system and component level benchmarking results utilizing subsets of real world applications or programs. This benchmark is useful for providing comparative results across a broad array of graphics cards, CPUs, hard disks, and memory configurations and it also includes some multithreading results. In this sense we consider the PCMark benchmark to be both synthetic and real world in nature while providing consistency in our benchmark results.


PCMark 2005 results for our test group are fairly close between the Intel chipset boards with the NVIDIA based ASUS P5N32-SLI SE taking a solid lead here due to excellent hard drive performance and multitasking scores within the benchmark. The three ATI X1900XTX equipped boards finished at the bottom of the group due to weak score results in the 2D benchmarks. Despite the close results in these tests with the Intel chipset boards, PCMark05 is still proving to be a useful overall performance benchmark. It is generally more sensitive than the older Winstones and PCMark04 to recent improvements in PC architecture.



We have replaced Winstones with 2 benchmarks that use rendering to test system performance. Cinebench 9.5 heavily stresses the CPU subsystem while performing graphics modeling and rendering. We utilize the standard benchmark demo within the program along with the default settings. Cinebench 9.5 features two different benchmarks with one test utilizing a single core and the second test showcasing the power of multiple cores in rendering the benchmark image.

While results are generally close in Cinebench, the ASUS P5N32-SLI SE tops the Dual-Core test results with the Intel 975XBX finishing a strong first in the single core tests, followed closely by the ASUS P5W-DH in both tests.

The 3DMark series of benchmarks by Futuremark are among the most widely used tools for benchmark reporting and comparisons. Although the benchmarks are very useful for providing apple to apple comparisons across a broad array of GPU and CPU configurations, they are not a substitute for actual application and gaming benchmarks. In this sense we consider the 3DMark benchmarks to be purely synthetic in nature but still valuable for providing consistent measurements of performance.


After taking a very strong first place in PCMark2005, we see the ASUS P5N32-SLI SE squeaking out a win in the 3DMark06 with an excellent performance turned in by the Gigabyte GA-965P-DQ6 for second place. The performance of the entire group was very close with the exception of the ASRock board due to its PCIe implementation (although a score over 6000 is still very respectable). The surprise was the ATI X1900XTX GPU scores as they have historically scored better in this benchmark than the NVIDIA based 7900GTX cards. We are still having conversations with ATI, but there appears to be a driver issue with the Core 2 Duo processors in our testing as the game scores will reflect the same results.

Overclocking Comparison


The overclocking capabilities we have measured thus far are with our standard E6700 CPU at a 10X multiplier. While this will not show the true FSB potential of the board, it does show a board's capability with the second highest performing Core 2 Duo and what can be expected with the fixed multiplier CPUs on average. We will be providing FSB overclocking results in our individual board reviews with the unlocked X6800. However, the only board in our testing that exceeded a 400FSB was the ASUS P5W-DH that reached 445MHz with our amazing little E6600 before running out of MCH voltage.

The NVIDIA based ASUS P5N32-SLI SE turned in a decent overclocking performance for an NVIDIA based Intel board but falls far short of the Intel chipset boards in high FSB overclocking. This situation will improve gradually over the next several months with the release of the DFI nF590 SLI board next month and then with the next true chipset revision this winter. Although the nForce4 Intel Edition board did not overclock competitively with the Intel chipsets when utilizing the FSB method, it did match the same overclocks when raising the CPU multiplier with our X6800 CPU.