PCMark 2002	Source: FutureMark

PCMark can be used on desktop PC's, Laptops and even Workstations and tests everyday computing from home to office usage. PCMark specifically stresses the CPU, memory subsystem, graphics subsystem, hard drives, WindowsXP GUI (if WinXP is used), video performance and even laptop batteries.

PCMark 2002 Benchmark Results
Processor	PCMarks	Ranking
Gigabyte GA-8ANXP-D (i925X, 200/400)	7134
Gigabyte GA-8GPNXP (i915P, 200/400)	7148
Albatron PX915G Pro (i915G, 200/400)	7043
Albatron PX915G Pro (i915G, 244/406)	8304
Memory	PCMarks	Ranking
Gigabyte GA-8ANXP-D (i925X, 200/400)	11194
Gigabyte GA-8GPNXP (i915P, 200/400)	10714
Albatron PX915G Pro (i915G, 200/400)	10604
Albatron PX915G Pro (i915G, 244/406)	11594

In PCMark2002 the numbers at stock speeds are pretty close throughout. The memory portion of the benchmark illustrates that 925X based motherboards score higher at stock.

PCMark04	Source: FutureMark

PCMark04 is the latest version of the popular PCMark series. PCMark04 is an application-based benchmark and a premium tool for measuring overall PC performance. It uses portions of real applications instead of including very large applications or using specifically created code. This allows PCMark04 to be a smaller installation as well as to report very accurate results.

PCMark04 Benchmark Results
Overall	PCMarks	Ranking
Gigabyte GA-8ANXP-D (i925X, 200/400)	4664
Gigabyte GA-8GPNXP (i915P, 200/400)	4909
Albatron PX915G Pro (i915G, 200/400)	4603
Albatron PX915G Pro (i915G, 244/406)	5419
Processor	PCMarks	Ranking
Gigabyte GA-8ANXP-D (i925X, 200/400)	4979
Gigabyte GA-8GPNXP (i915P, 200/400)	5182
Albatron PX915G Pro (i915G, 200/400)	4953
Albatron PX915G Pro (i915G, 244/406)	5972
Memory	PCMarks	Ranking
Gigabyte GA-8ANXP-D (i925X, 200/400)	5313
Gigabyte GA-8GPNXP (i915P, 200/400)	5243
Albatron PX915G Pro (i915G, 200/400)	5139
Albatron PX915G Pro (i915G, 244/406)	5800

You should see the pattern by now. At stock speeds all motherboards perform roughly the same because they are using the same CPU. When the PX915G is overclocked nothing can catch it.