That's actually barefeats.com.
SSDs are in their infancy, and there's a huge range of speeds among the many currently available models. All of them will probably be faster for all purposes than a 5400RPM hard drive, but some are slower in some uses than a 7200RPM hard drive. The fastest and most expensive ones are several times faster than any hard drive in most operations, and somewhat faster than hard drives even in the operations that SSDs perform most slowly. If you are thinking of buying a SSD, I recommend waiting a year: prices then will be half what they are now, and speeds will be uniformly higher, expecially among lower-priced SSDs.