Applications
3D Studio Max shows no performance gain for faster memory or tighter timings, again appearing to be dependant only on raw processor power.
Synthetics
Memory-only benchmarks might be the only place any of us ever see a noticeable performance improvement from minor changes in latency, and PC Mark 2005 puts Super Talent's excellent DDR3-1600 minimum timings on top. On the other hand, Mushkin's second-place finish has no relevance to its sixth-place DDR3-1600 timings.