I forgot to install the Samsung NVMe driver... hahaha

ONce installed, performance siok
My ultrabook now also with latest SATA SSD.
IMO, PCIe SSD might be 4 to 5x faster, but practically is less than 2x faster due to limited in other components such as CPU etc. When we are using 5x faster SSD such as PCIe, Our CPU is not 5x faster.
If our CPU and other component is infinity speed, then we should experience lots of differences.
Am I happy with my Samsung PCIe 950 Pro? Yes and No.
Yes - I love its performance. Even in the future there are drive 2x faster than my Samsung, actual performance improvement should be little due to other limitation.
No - I regretted having bought 256GB version. Should had bought 512GB. Why? When you found out the performance is so great, you tends to open your eyes and imagination... And with new usages... It will translated into additional capacity required.