Yes, users have observed that the 24-inch iMac's SSD has better reading abilities than the 27-inch one’s. In our tests, the 24-inch iMac had approximately 2800MB/s read and 2200MB/s write speed, whereas for the 27-inch iMac, the figures were about 2300MB/s read and 2100 MB/s Write. It follows that the new iMac possesses better SSD read speed allowing for a more elegant interactive experience overall.