"New Samsung 970 PRO NVMe 500 GB SSD
I thought you might be interested in results on my Mini-ITX Hackintosh computer using the subject SSD and comparing with my current Crucial M500 SATA III 500 GB SSD(s). I didn't even realize I had a M.2 SSD socket on my Z370N-WIFI motherboard until recently. And since I have the two Crucial SSDs, I didn't really need another storage component anyway. But I became interested in learning about the NVMe protocol, and having done that I decided to buy and install the subject SSD on my motherboard to see what I could see.
I found that boot times are identical, about 28 seconds whether using the new SSD or either of my Crucial SATA SSDs. Odd I thought, but not amazing. Graphic results (fps) when benchmarking with Unigine "Heaven" and "Valley" also match identically between the two types of SSDs, always running the benchmarks from the appropriate booted SSD. The only real difference I have seen so far is benchmarking with "BlackMagic Disk Speed Test," where the NVMe SSD shows a huge speed increase. Results of that test are shown below. This is with the hardware and software configuration I have run for some time now, except for the new SSD.
Regarding the disk speed tests, they record only the sequential read and write speeds. Random access speeds are less for both types (I have not tested for that).
CPU: Intel i7 8700 (6-core, 3.2 GHz locked)
Motherboard: Gigabyte Z370N-WIFI
RAM: Kingston 16 GB DDR4 (2 ea 8 GB cards)
Storage: Samsung 970 PRO NVMe SSD 500GB, Crucial M500 SATA III 500GB SSD (2 ea)