Originally Posted by IntelUser2000
...The 60GB version of the E must be using 1/2 channel.
Yes, it has been confirmed that's the case. And the same is true for Vertex2 120GB "E" version, which I've bought a week ago
The problem is, how manufacturers measure and declare performances. In case of my OCZ drive, there's label:
Read: Up to 285MB/s
Write: Up to 275MB/s
The problem is, consumer doesn't know what "max performance" means -unless, one reads techie forums (like this). And "review" sites? Well, mixed bag... they somehow forget to tell what numbers are important in real usage.
Ok, let me tell what "max performance" means this case: it means, user will get declared speed only if transferring files which are highly compressible (=contain uniform data, read: all zeroes or similar repeating content). Why? Because SandForce controller compresses files before writting. That is, when saving 100MB file, file gets compressed first, and result (say 60MB) is actually written -writting 60MB is faster than writting 100MB. Great idea!
Reality is, we don't deal with such ideal data: jpg, avi, mp3,.. -they all are allready highly compressed (even native Word2010 doc files are actually zip files). Yes, we (users) are dealing with compressed files.
And here, SandForce has a problem: i.e. compressed 100MB file can't be compressed anymore -hence, "real" 100MB must be written. And when this happens, users is confronted with "real" performance.
Some of you would say "nobody would use SSD for avi, zip, jpg, mp3,... files". What for should we use SDD then? For OS pure? You decide.
And then, the "famous" Vertex2, where OCZ decided (?) to reduce number of nand chips...so "power" of SandForce is clamped even more. I've made simple test by copying Win7 ISO file (3GB). And here's the result:
1. Copying from HDD to SD : ~70MB/sec
2. Copying from SDD to HD : ~100MB/sec
And guess what: HDD is slow WD Green 5200rpm!
About benchmark tools: some are saying ATTO is "customized" to show OCZ drives in better light. Not at all. One should choose right options: just use "I/O Comparison" option and select "Random" test pattern.
What to say... SSD has impressive read performance, it's quiet, cold, silent.. in general, I can only highly recommend it: that's where you should have your OS on.
As far OCZ concerns... I'll keep SSD I've bought (have no time for "fill complain", "send to", "wait from"). But probably I won't buy their products anymore.
Thanks for reading,