PCIE AND SATA M .2 SSD PERFORMANCE
The following charts lay out our M.2 SSD testing to date and encompasses both PCIe and SATA M.2 SSDs. The KingSpec M2B7 is the only using the JMicron controller and provided fairly respectable performance.
REPORT ANALYSIS AND FINAL THOUGHTS
The sole advantage that the SATA 3 M.2 SSD has over the mSATA or any notebook SSD is size and nothing more. It is still SATA based and hits the same bottleneck as all other SATA 3 SSDs; performance is limited to the mid-500MB/s level. By numbers alone many believe that having a system with 1GB/s transfer speeds must be much faster and is of huge benefit. The truth is that this is not the case and, unless you have specific intent for that added performance, SATA 3 will suffice. The common user will never see any difference between PCIe and SATA 3 speeds. In fact, if I set up two systems side by side right now, one with a SATA 2 SSD and one with SATA 3, typical performance would not differ whatsoever. I could ay the same in comparing a PCIe and SATA 2 SSD.
What the M.2 SATA SSD does do however, and more specifically the KingSpec M2B7 128GB M.2 SSD we see here, is gives you that same performance in a considerably smaller footprint. Remember what we said about being able to get 4 of these SSDs on a single business card. That is where we are going with SATA 3 M.2 SSDs, the world of ultras and non-consumer things such as surveillance systems, drone planes and so on. To push 500MB/s out of a storage device this size wasn’t even conceived of not so long ago. Remember full size 3.5″ HDDs?
There is no doubt in anyones mind that 2014 will be the year of M.2 SSDs and it is great to see KingSpec jump aboard right off. Their M2B7 M.2 SSD is high performing, has decent performance and their selection of the JMicron controller will keep it at a very affordable price point when purchased in bulk. Will it hit retail shelves? Looking at other KingSpec products on Amazon, we are sure that it will eventually but, when and at what price, we are not sure. Off to CES!