Sandisk advertises the Readycache SSD to have a throughput of 480 MB/sec. Tests like on hardocp.com seem to confirm this.
I ordered two Readycache SSDs from two different vendors and tried them in two different PCs (AMD and Intel CPUs). There was a performance gain but not as big as I expected. So I measured the SSD raw performance of those Readycache SSDs and they only reach 200-230 MB/sec seq. throughput. The firmware version is 2.0.0.
Does Sandisk package a much slower SSDs in its newer Readycache SSDs ???