SSD Hierarchy Chart

This hierarchy chart relies on information provided in our Storage Bench v1.0, as it ranks performance in a way that reflects average daily use for a consumer workload. This applies to gamers and home office users. The chart has been structured so that each tier represents a 10% difference in performance. Some rankings are educated guesses based on information from testing a model at a different capacity or a drive of similar architecture. As such, it is possible that an SSD may shift one tier once we actually get a chance to test it. Furthermore, SSDs within a tier are listed alphabetically.

There are several drives that we're going to intentionally leave out of our hierarchy list. Enterprise-oriented SLC- and 512 GB MLC-based SSDs are ignored due to the extreme price they command (and the difficult we have getting samples in from vendors). Furthermore, SSDs with a capacity lower than 60 GB are left off because of the budget nature of that price range.

SSD Performance Hierarchy Chart
Tier 1	Mushkin Chronos Deluxe 240 GB OCZ Vertex 3 Max IOPS 240 GB Patriot WildFire 240 GB Samsung 830 SSD 256 GB Other 240 GB second-gen SandForce SSDs with Toggle NAND
Tier 2	Adata S511 240 GB Corsair Force GT 240 GB Kingston HyperX SSD 240 GB OCZ Vertex 3 240 GB Other 240 GB second-gen SandForce SSDs with Sync ONFi NAND
Tier 3	Crucial m4 256 GB Intel SSD 510 250 GB Mushkin Chronos Deluxe 120 GB OCZ Vertex 3 Max IOPS 120 GB Patriot WildFire 120 GB Samsung 830 SSD 128 GB Other 120 GB second-gen SandForce SSDs with Toggle NAND
Tier 4	Corsair Force 3 240 GB OCZ Agility 3 240 GB Patriot Pyro 240 GB Other 240 GB second-gen SandForce SSDs with Async ONFi NAND
Tier 5	Intel SSD 510 120 GB Crucial m4 128 GB
Tier 6	Adata S511 120 GB Corsair Force GT 120 GB Kingston HyperX SSD 120 GB OCZ Vertex 3 120 GB Samsung 470 SSD 256 GB Other 120 GB second-gen SandForce SSDs with Sync ONFi NAND
Tier 7	OCZ Agility 2 240 GB OCZ Vertex 2 240 GB
Tier 8	Corsair Force 3 120 GB Intel SSD 320 300 GB OCZ Agility 3 120 GB OCZ Solid 3 120 GB Patriot Pyro 120 GB Samsung 470 SSD 128 GB Other 120 GB second-gen SandForce SSDs with Async ONFi NAND
Tier 9	Corsair Force 3 60 GB Crucial m4 64 GB Kingston SSDNow V+100 128 GB Intel SSD 320 160 GB OCZ Agility 3 60 GB Patriot Pyro 60 GB Other 60 GB second-gen SandForce SSDs with Async ONFi NAND
Tier 10	Intel SSD 320 80 GB OCZ Agility 2 120 GB OCZ Vertex 2 120 GB OCZ Solid 3 60 GB Other 120 GB first-gen SandForce SSDs

source:http://www.tomshardware.com