I have a 4 gig ReadyBoost drive installed. Is it making any noticable difference ?? Nothing Earth shattering, but my computer is running fast, stable, and smooth, so maybe it does have something to do with that. It may be a combination of a few things that add up to a great performing computer. So does the ReadyBoost add ?? They say it's most notible when you have a low amount of ram that needs boosting. I'm running 4 gigs of ram, a 64 bit version of Windows 7, an Intel Duo Core e6750 processor, sata hard drive, fairly new ASUS motherboard, a decent video card. So all things together make up the whole package. So even it it just helps a little bit, that's a little bit I want. I think I paid around $ 7.00 for it, so it's really no big investment at all.
Unless you have the bare minimum of RAM -- Turn this feature OFF -- It's the mother of all "Disk Thrashing" problems - especially on VISTA systems. If you have a decent amount of RAM >= 3GB this "feature" is just a waste.
I thought ready boost was for systems with low ram and is basically like paging file, which only gets used when memory is low. Correct me if i'm wrong. If thats the case I dont see the need for it on a pc with 4g +. I do have a ready boost enabled pen drive but have not used it since switching to x64 because 4g is more than adequete, so I use it for my portables.