Despite the mediocre Air SSD, The future of SSDs looks bright
Although I still love it, the macbook Air SSD somewhat disappoints/ Although I acknowledge that a compromise was necessary for costs, heat, and power consumption, the speed seems pretty slow. If I were to purchase one, I'd buy the HDD and replace it with a faster 1.8" SSD.
Anyways, there have been tons of announcements in the recent months about new SSDs with very fast speeds, and these are all before this new Intel/Micron announcement about this new 5X faster flash technology.
This macrumors article talks about the speed limitations of existing NAND flash, but I'm assuming that is only per chip, and the chips can work in parallel in something like a RAID setup. I don't know the architecture details of how SSD are made, but I know they are alot faster than the numbers given for existing NAND flash in this article.
When looking at SSD speed figures, you obviously should look at legitimate benchmarks to confirm the manufacturers speed claims, but the few test's I have seen have indicated that manufacturers numbers are usually pretty close to tested speeds aka 5-10% error.
Here are some test results from tomshardware.com on some SSDs they have reviewed:
(
http://www.tomshardware.com/2007/12/17/solid_state_drives/page7.html)
MTron SSD 32GB
95 MB/s sequential read
75 MB/s sequential write
Sandisk SSD6000 32GB
68MB/s sequential read
47MB/s sequential write
... these drives really are very fast. Seemingly much faster than the drive put in the Macbook Air. So those of you out there discouraged by the Macbook Air results, I think the future shall be bright.
🙂
Below I put some of the recent press release numbers I gathered from tgdaily, wikipedia, etc
MTron 1.8"/2.5"
100MB/s sequential read
80MB/s sequential write
SuperTalent 2.5"
60MB/s sequential read
45MB/s sequential write
PNY 1.8"/2.5"
66MB/s sequential read
50MB/s sequential write
BitMicro 2.5"
"100MB/s+"
Pretec
68MB/s sequential read
40MB/s sequential write
A-Data
"62MB/s"
Ridata
60 MB/s sequential read
48 MB/s sequential write
Samsung 1.8"/2.5"
64MB/s sequential read
45MB/s sequential write
Samsung NEW SATAII 1.8"/2.5"
120MB/s sequential read
100MB/s sequential write
Adtron 2.5"
" in the 70MB/s range"
Toshiba 1.8"
100MB/s sequential read
40MB/s sequential write