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Pros: This is the new performance king of consumer SSDs. I measured incompressible sequential writes (and reads) of over 500 MB/s with AS-SSD. It has QD1 4K random read speeds of 35-40MB/s. And its QD32 4K random reads and writes are over 300MB/s.
Has a 5 year warranty.
Cons: Uses new 21nm flash, and I cannot find a spec from Samsung on how many erase cycles it can endure.
If you hit the 840 Pro really hard (eg., fill it up with small random writes and keep writing) the performance degrades significantly, the same as other consumer SSDs. But at this price, I'd rather see it hold up better under sustained heavy loads, like the Intel S3700 enterprise SSD.
Other Thoughts: It is too early to tell if the reliability of the 840 Pro will be as good as the 830. I guess the 840 Pro will hold up well, but anandtech had a review sample die and apparently Samsung has not been able to explain the failure. Hopefully that pre-release model was an anomaly and the production units will be fine.READ FULL REVIEW
Pros: Marvell controller - proven, reliable
Toggle flash - good performance
High speeds regardless of compressibility of data
Cons: No firmware updates from Corsair
Sub-par sequential read performance, esp. low QD
Incompatible with most LSI and Areca RAID cards
Other Thoughts: I have owned this SSD for about 3 months now. When I first got it I was quite pleased with it, but as time has gone by, the Corsair has lagged behind the Plextor M3P models which it closely resembles. Plextor has released firmware updates to improve the sequential read performance and to make their SSDs compatible with hardware RAID cards. Corsair has not released any firmware updates, and they will not even answer my question whether they are currently working on a firmware update.
The Plextor M3P is a better choice. Higher performance, better compatibility, timely firmware updates, and a 5 year warranty.
Pros: No monthly fees like TiVo
Cons: Unreliable -- intermittently misses recordings, partial recordings
No support forum
Support people are condescending and unresponsive to firmware issues
Other Thoughts: It can work without issues sometimes for weeks, and then for no apparent reason, it will have numerous missed recordings and partial recordings for days or weeks. Checking Ceton's "crashlog.txt" shows that the actual firmware is crashing and rebooting the card, resulting in missed recordings.
If you check the various forums, you will see that many people are experiencing similar problems. It is intermittent because you only notice it if the card reboots while you are recording a program (or about to record). Some have speculated it is a memory leak in the firmware that causes the card to randomly reboot.
Ceton has know about the issue for at least 3 months, and they seem unwilling or unable to fix it. Ceton is a small company and I suspect that they have abandoned supporting current products in order to work on building their new products (Q and Echo).