RamDisks can be any size, limited only by your total memory and lightning fast. They are also temporary. Any files stored on a RamDisk will be permanently deleted when the disk is ejected. No need to worry about deleting, trash or cleaning up temporary files anymore.
Warning: A TmpDisk will not survive a restart or ejecting. Any files or information on the disk will be permanently deleted once the computer is shutdown or the disk ejected.