Sandisk released the Extreme SSD in 60GB, 120GB, 240GB and 480GB capacity sizes. The performance changes a little with each capacity size with the 240GB model being the fastest.

If you want a cheap SSD in the 480GB-512GB range, you can beat the SanDisk Extreme II 480GB's $449 price tag easily. NewEgg shows multiple drives in the $299 - $329 range.

Class SSD with Enthusiast class performance This review covers the new Lexar NM600 series, this more affordable series 480GB model is plenty fast with a rated sequential read speed up to 2100 MB/s ...