Winstone 2004	Source: Zdnet

Business Winstone 2004 is a system-level, application-based benchmark that measures a PC's overall performance when running today's top-selling Windows-based 32-bit applications on Windows XP. Business Winstone doesn't mimic what these packages do; it runs real applications through a series of scripted activities and uses the time a PC takes to complete those activities to produce its performance scores.

Business Winstone 2004
Memory	Points	Ranking
2x 512MB PQI Turbo PQI25400-1GDB (200/533)	22.7
2x 512MB Crucial Ballistix PC2-5400 (200/533)	23.5
2x 512MB Mushkin PC2-4200 (200/533)	23.7
2x 512MB Mushkin PC2-4200 (231/614)	25.7

At stock speeds we see that the Mushkin PC2-4200 DDR-2 memory has no problems keeping up with the Crucial Ballistix memory, and is faster than PQI's offering.

SiSoft Sandra 2004	Source: Sandra

Sandra is designed to test the theoretical power of a complete system and individual components. The numbers taken though are again, purely theoretical and may not represent real world performance. Higher numbers represent better performance.

Sisoft Sandra 2004 Benchmark Results
Memory	Integer SSE2:	Float SSE2:
2x 512MB PQI Turbo PQI25400-1GDB (200/533)	5346	5353
2x 512MB Crucial Ballistix PC2-5400 (200/533)	5383	5375
2x 512MB Mushkin PC2-4200 (200/533)	5344	5362
2x 512MB Mushkin PC2-4200 (231/614)	5547	5563

At stock speeds, all the memory modules have about the same bandwidth. This shouldn't be surprising considering they're running at the same speeds.