Your HDD has a higher seq read simply because the Intel drive uses NAND capable of only reaching 70MB/s sequential writes. That means absolutely nothing and you should be looking at the difference in your 4Kb randoms.
Superfetch.... hmmm...where to start. ok How about this?
This is from the engineers point of view at MSDN:
Will Superfetch be disabled on SSDs?
Yes, for most systems with SSDs.
If the system disk is an SSD, and the SSD performs adequately on random reads and doesn’t have glaring performance issues with random writes or flushes, then Superfetch, boot prefetching, application launch prefetching, ReadyBoost and ReadDrive will all be disabled.
Initially, we had configured all of these features to be off on all SSDs, but we encountered sizable performance regressions on some systems. In root causing those regressions, we found that some first generation SSDs had severe enough random write and flush problems that ultimately lead to disk reads being blocked for long periods of time. With Superfetch and other prefetching re-enabled, performance on key scenarios was markedly improved.
Intels new Users guide to the SSD says this:
Disable Superfetch(For Microsoft Windows Vista and Windows 7)
•On your “Start” search menu, type “services.msc”. Scroll down and find the “Superfetch” line, and double click it to open up its properties.
•Change the “Startup Type” to “disabled”.
•Superfetchis designed to open your frequently used programs more quickly. However, this technique doesn’t speed up an Intel SSD’s performance significantly and can ultimately have a negative effect on the performance of the drive. Superfetchis not a feature on Microsoft Windows XP.
Lets talk logic for a minute and I will include a few other things if that is ok. I will speak with respect to Duperfetch, Prefetch, Page File and Indexing. There is absolutely no data whatsoever that can show that they do anything whatsoever with respect to our newer ssds, newer being from the release of the intel that you have.
I understand that many will jump in here and thats what makes a good debate but the truth is I have had all of these shut off since 2007 in my system and have never, not even once, had even a smallest problem. I can state quite honestly that I am as close to a power user as you will find and can give examples of which I speak.
If you have 4Gb RAM in Win7 and you shut all of these off, do me a favour ok? Start 50 instances of any mixed programs including a browser, email, movies, pictures and on and on...your choosing. Once all 50 are started, take a look at your resource monitor on the left and then tell me how much RAM you have available...with Pagefile shut down. I would bet around 50% still.
We can argue that Pagefile speeds up your system but actually RAM is forced to be used to its potential only when Pagefile is shut down. The seek time of a SSD is .1ms. Regardless of what kind of snake oil anyone tries to sell you, you are not beating that. You cannot improve on it.
Hope this helps and I truly hope I never ruffled too many feathers as I only come here to assist and believe all angles of every argument should be explored. Three years ago, people wanted to lynch me for stating that Pagefile was useless and today...well look how far we have come. the world isn't flat
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