Mechanical drives vs SSDs in RAID 0 configuration

Hi Everyone, In the past I have created a variety of RAID arrays using mechanical drives. As a general rule of thumb I found the data throughput with RAID 0 to be an 80 - 90% speed increase when compared to one drive acting alone. I am now considering setting up a RAID 0 array using SSDs, more specifically I am looking at purchasing 2 x Corsair Force 3 240GB SSD...