The Serial ATA hard drive market has undergone a major shift in capacity, moving from the standard 1TB models to the Seagate Barracuda 1.5TB, and more recently, Western Digital attained a full 2TB of disk capacity. But as always, reaching the top of the data capacity mountain requires a significant monetary investment, and most buyers don't really need 2TB of data capacity and would rather look at something a bit more affordable.

This is where drives like the Samsung Spinpoint F1 640GB come in, and this range has replaced the popular 750GB models as the top entry-level solution. This shift is mostly due to the popularity of the 1TB range, and companies utilizing the same 320GB-334GB platter size to create a dual-platter 640GB drive for the masses. Samsung has created an inexpensive hard drive that still has more than enough capacity and performance, but how will it stack up against the 750GB and 1TB drives?