Operating System load times: SSD vs M.2

[I_Eats_Food]

Hi I am currently trying to plan out a new gaming computer build. I was planning on having a WD black series hard drive for games, a WD 500Gb hard drive for general files and images, but I want extremely fast OS load time and I am not sure of the difference between M.2 and an SSD. It can be extremely small (<100Gb) as I do not plan to put any thing other than Windows 10 on it.

I plan on using a "MSI Z170A GAMING M5 ATX LGA1151" if that will affect the outcome, please let me know. I am willing to choose a different board if it gives me a decently better load time.

Any and all suggestions would be appreciated.
Thank You!

 

[CountMike]

You are going to shave couple of seconds of the BOOT time to play games for hours at a time ???
Games themselves are not going to load any faster with super fast SSD when they are installed on HDD. My Windows 10 load in less than 7 seconds even from old and relatively slow SSD but because most important programs are installed on SSD they start in 1 - 2 seconds and ones installed on HDD take 4 - 5 times longer.

 

[I_Eats_Food]

You are going to shave couple of seconds of the BOOT time to play games for hours at a time ???
Games themselves are not going to load any faster with super fast SSD when they are installed on HDD. My Windows 10 load in less than 7 seconds even from old and relatively slow SSD but because most important programs are installed on SSD they start in 1 - 2 seconds and ones installed on HDD take 4 - 5 times longer.

Yes, I don't mind games load time, I would rather have my entire Steam collection loaded to a huge hard drive and wait for load times, than have a couple on an SSD and not have to wait on a load screen. Hard Drives are just cheaper for large amounts of memory, which is what I want.

But I am still curious as to whether a M.2 would be faster than an SSD for loading the OS.

 

[CountMike]

That BIOS should also have fast boot option.