Regarding IOPS, this is the first time I've heard claims of multiplying performance. Even if it's true, again it needs to be put in the context of the actual workload that the drive will be put through. It may not be a noticable gain.
I would normally discount a claim like that... except it is made by Intel in an official document. And I believe I am reading it right.
It may just apply to Intel SSDS.... more or less. Or it might have more general applicability. It requires too much skill and effort to do a good test. We will have to leave that to Anand and/or SPCR.
But as you indicate... the real question isn't whether or not it can increase IOPS... The real question is if it does.... so what... what is it's real life impact?
With the caveat that I don't feel that I have a good intuitive understanding of cause and effect in start up speed.... It seems to me that a lot of the startup time near the end of the booting process involves the drives scooting around loading a whole bunch of small files. Seems to me that increased IOPS would decrease that bottleneck. I think it probably helps with any poorly written application that is scurrying around attempting to load a whole bunch of small files.
For a desk top user, maybe that is the only benefit. I wouldn't expect that to help if you are loading or moving large files.
You may be talking me out of doing a heavy duty over provisioning on my new Intel SSDs. I am going to have to think about it.