Update:
Finally got the OS fully updated (ran to date a total of 236 updates), most of my apps\games installed & have checked\set up Windows to optimize this SSD over & above what Win 7 hadn't already done itself as I had done when I installed the OCZ Vertex4 SSD's some 2 1/2+ yrs ago.
I can see why these SSD's are touted for their performance but the main improvement that I have noted w/ this Plextor BK PCI-E SSD over my OCZ Vertex4 SATA III SSD that I can see up front is in latency & bandwidth. This has more to do w/ comms directly over the PCI-E bus vs the SATA bus IMHO. The Plextor is noticeably faster in response time vs the OCZ's then the read\write speed advantage over the 2 PCI-E lanes makes up the rest. I ran both this Plextor & OCZ SSD thru AS SSD Benchmarking software & the results of both SSD's showed this to be true. The Plextor reads\writes much more data\s in sequential tests, reads faster but writes slightly slower in random 4K1T tests, reads faster but writes slightly slower in random 4K64T tests, reads much faster but writes slightly slower in access time tests for an aggregate score advantage of 62 (I tried to post the benchmarking results but the free image host that I was using wouldn't upload them as AS saves the results in HTML format & postimage.com won't upload HTML content). The slower random write speeds also have to do w/ the extra provisioning that the SSD controller has to process when writing across the 476 Gb partition on the Plextor SSD vs the 238 Gb partition on the OCZ SSD so this is something that I will overlook as 1.) the random write speed difference is very small between the 2...less than 10 Mb\s & the sequential write speed advantage of the Plextor would hide this & 2.) I know that most of what we as consumers would notice is the access time & read performance of any drive over write performance of the same drive in most ordinary consumer usage & this PCI-E SSD consistently accesses & reads faster than the SATA III SSD's that I have & I can easily see this difference while in use so this thing is the real deal in my assessment.
Now w/ all this being said, this PCI-E SSD (or any PCI-E SSD) would NOT be attractive for normal consumer use due to the cost per Gb & the performance advantage that this Plextor has is not enough for a "normal" consumer to want to spend this kind of money for....but in fairness these SSD's are not aimed at the mainstream market....they are specifically aimed for the consumers who are more "prosumers" in usage (video editing & playback, CAD, movie editing & playback, servers & in some of the most modern games where the game(s) is coded to use more reads/writes of data to\from mem & drive) & professional gamers....the main target that Plextor's advertising of this SSD that I have is aimed at so keep this in proper perspective.
Ain't trying to sell it, just posting the results of my testing & usage of this product to share w/ all.
I got this SSD to 1.) test its performance capabilities, 2.) test the prospect of by-passing the SATA bus & X79 chipset completely (outside of USB connectivity) & run all storage devices as direct as was possible on the PCI-E bus system on my mobo (have 40 lanes of PCI-E bus to use & since I'm not gonna do any Crossfire\SLI vid card setups that leaves a BUNCH of untapped PCI-E lanes to use) & that the PCI-E bus is MUCH faster & has MUCH more usable bandwidth than SATA III I hoped to see some up front performance improvement & lengthen the usable time frame of my mobo, 3.) I have the extra disposable cash on hand to afford it at this time & 4.) this SSD looks good & matches my case theme (CM Storm Scout 1st gen black w/ red accents). Yep I'm 1 of those users..........
In all I am pleased w/ this PCI-E SSD & its performance....so much so that I will not be looking to go back to using any SATA drive as a boot drive going forward. Once I get all buttoned up on this Plextor SSD I will perform a secure erase of my OCZ Vertex4 boot drive & use it as storage along w/ my other OCZ Vertex4 being used as storage\page file duty.
In the future I will definitely be looking to get 1 of the new Intel 750 sers NVMe PCI-E SSD's & test it.........this will depend on whether\when Asus will put out an updated UFEI to bring NVMe compatibility to this RIVG mobo as only the Intel X99 & Z97 series mobos will be NVMe-compliant at this time. There is already a hotfix out for Win 7 SP1 to give it native NVMe support (Win 8.1 has native NVMe support already) so the wait is on Asus...................or a new platform upgrade.
We'll see which happens 1st............
Now its getting time to set up my HOTAS maps for AH........forgot to check to see if I had saved my CH maps & AH settings\sounds folder to my ghost SSD before I pulled the SATA boot drive to install this PCI-E SSD.........found out that I hadn't done that so I'm trying to figure out a method to get these files from my SATA boot drive w/o having to pull my PCI-E boot drive out as both have the exact same OS vers & ID on them.........................
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Enjoy!