![]() 250 MB to 256 GB of flash memory can be allocated (4 GB in Windows Vista). When a compatible device is connected, the Windows AutoPlay dialog offers an additional option to use the flash drive to speed up the system An additional “ReadyBoost” tab is added to the drive properties dialog where the amount of space to be used can be configured. ![]() Flash devices are typically slower than a hard drive for sequential I / O, so to maximize performance, ReadyBoost includes logic that recognizes large sequential read requests and makes the hard drive service these requests. This caching applies to everything on the disk, not just the page file or system DLLs. Using ReadyBoost compatible flash memory (NAND memory devices) for caching enables Windows 7 and Vista to perform random disk reads with performance typically 80 to 100 times faster than random reads from hard drives traditional.
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