I recently read the intel 320 review on techreport. In it, there's a link to some statistics about return rates of SSDs vs hdds. Intel x25 is the lowest, at 0.5%. other SSDs hover around 2-3%. Hdds are the worst, highest at over 10%.
So yes, SSDs are more reliable.
I did some searching and it seems information about 10% 2TB HDD failure rates are from a particular French e-tailer; they aren't actual manufacturers' numbers. Not that I haven't seen these numbers quoted for 2010 and believed them myself. If someone finds more scientific numbers, please post them.
1 TB Mechanical Drives:
- 5,76% : Hitachi Deskstar 7K1000.B
- 5,20% : Hitachi Deskstar 7K1000.C
- 3,68% : Seagate Barracuda 7200.11
- 3,37% : Samsung SpinPoint F1
- 2,51% : Seagate Barracuda 7200.12
- 2,37% : WD Caviar Green WD10EARS
- 2,10% : Seagate Barracuda LP
- 1,57% : Samsung SpinPoint F3
- 1,55% : WD Caviar Green WD10EADS
- 1,35% : WD Caviar Black WD1001FALS
- 1,24% : Maxtor DiamondMax 23
2 TB Mechanical Drives:
- 9,71% : WD Caviar Black WD2001FASS
- 6,87% : Hitachi Deskstar 7K2000
- 4,83% : WD Caviar Green WD20EARS
- 4,35% : Seagate Barracuda LP
- 4,17% : Samsung EcoGreen F3
- 2,90% : WD Caviar Green WD20EADS
SSDs:
- Intel 0,59%
- Corsair 2,17%
- Crucial 2,25%
- Kingston 2,39%
- OCZ 2,93%
Anyway, SSDs have a much smaller sample size vs. HDD. Let's see what the future holds in 5000 writes. You can probably make an SLC SSD read-only in a few days by bombarding it with small continuous writes.