Corsair has released their TWINX PC3700 memory kits which are pre-tested to operate in Dual Channel mode at 466MHz DDR with memory timings of 3-4-4-8 (CAS Latency - RAS Precharge - RAS-to-CAS Delay - RAS Active to Precharge).
Corsair recommends using its TWINX-3700 memory modules with i865PE and i875P and Intel Pentium 4-based systems when overclocking. The timings of the new memory modules are relaxed to 3-4-4-8 (CAS Latency - RAS Precharge - RAS-to-CAS Delay - RAS Active to Precharge) and the modules should work at higher frequencies (e.g. 466MHz) in order to bring advantages in speed. Note that Corsair does not recommend lowering the latency settings of the modules even when they operate at lower clocks, furthermore, the company recommends using TWINX-3200LL (2-2-2-6) modules for using with NVIDIA nForce2/nForce2 Ultra 400-based personal computers and AMD Athlon XP processors for better performance.More information @ X-Bit Labs
According to Corsair, i875P gains much more performance boost due to higher speed rather than due to lower latencies. We should note that this is only valid for certain types of applications; you should always consider buying your hardware after looking through benchmarks that reflect your requirements in computing.