Today do a heap of real world benchmarks (like booting Windows 10, launching Battlefield 1) and testing a hard drive vs a ssd vs a nvme m.2 to see what the differences are between these three choices of disk drives, I have a WD 3TB Blue (5400RPM, and yes a 7200RPM will be faster, but not by whole lot to make these benchmarks different) Vs A SSD Vs. a NVMe M.2. Even the synthetics showed a massive difference, the boot times of games and also the OS showed virtually no difference, and was here that I thought that most people are not going to really benefit from going from an SSD to an NVMe drive, unless of course they are trying to save time on productitivty workflow (like Adobe Premiere Pro for example).
Though of course there is a big difference between the SSD and the HDD, and although you won’t gain FPS in games, you will save a lot of time and you can eliminate some stuttering if your HDD is busy in the background and also.
Here are some cheap options for SSDs if you want to use them as a boot drive (the 4k reads are much faster, which is very important).
International Kingston 32GB drive for $20 (maybe a fake though) on ebay – https://goo.gl/xvrVng
Amazon 32GB 20$ – http://amzn.to/2go6gRU
64GB SSD – $35 – http://amzn.to/2gabwWj
Fast & Solid Value NVMe – http://amzn.to/2go4kch
525GB MX300 SSD – http://amzn.to/2go9ept