Why is Momentum Cache not making as big a difference as I expected?Momentum Cache affects only write operations, not read operations. Read speed should remain unaffected by Momentum Cache. Also, other system resources like available memory and CPU speed (which is often changed dynamically), power saving modes and SATA driver can have an impact. The effects of Momentum Cache also may not show in all benchmarks. Momentum Cache may not make a noticeable difference on systems that have less than 6GB of available RAM. Running software encryption, for example BitLocker in Windows® 7, will noticeably reduce the performance impact of Momentum Cache. Lastly, higher capacity SSDs write faster by addressing more components in the SSD simultaneously, which results in reduced improvements seen by the cache function.