Actually Kate B , it's extremely relevant , I am trying to stop someone spending unnecessary money on something that will not make the difference that he thinks it will , Ready Boost is a very handy thing that is built into Vista , but it really is for systems that are light on memory and as I said , with 2gb of ram already installed it won,t make any tangible change to the speed of the PC .
Apparently the know-it-alls, or so they think, that "answered" this need to have some knowledge of just what Readyboost is. Readyboost does not operate the same as system ram and even a system running 2GB of ram will see performance increase with Readyboost. Readyboost is a cache, not system ram. Saying you won't see a benefit is like indicating that if you have enough memory you don't need a swap file. Maybe in certain situations that could be true, but not overall.
I have found even with only running 1GB RAM with Vista Home Premium the difference is marginal. Tried "Peak 1GB Extreme SD Card" and also a 2GB High Speed USB flash drive. Use Vista's Performance & Reliability monitor to see what is being written to the readyboost drive. Goto performance monitor and click the green cross, find readyboost then add counters such as read/write bytes per sec etc. Minimize the window and open lots of applications, then maximize performance monitor and view results. In the end I found advantage non existent for normal use. Let us know how you get on with it. Karl