Why primary storage is much more expensive than secondary storage?

[Don2x8]

hi! im new here! this is my first post ;D

im wondering, why just a bunch of gigs in RAM cost much more than a bunch of gigs in secondary storages. is it about how the RAM works vs HDD,SSD,etc. works? or is it about the materials use to make those storages?

 

[StrangleHold]

Memory/RAM is a lot faster and volatile. The chips cost more then they do in a SSD and mechanical hard drives have been around since the 50s in some shape form or fashion. At this point I don't think they make much of a profit on mechanical hard drives.

 

[beers]

As stated, RAM is significantly faster than even the fastest pcie ssd.

 

[Intel_man]

Yep, RAM is ridiculously quick.


This is a benchmark of using 4GB of DDR4 RAM as storage via Ramdisk.

and this is Intel's 750 series ssd which uses the nvme PCI-E platform

 

[beers]

This is a benchmark of using 4GB of DDR4 RAM as storage via Ramdisk.

Surely you can do better than that

 

[Intel_man]

Probably... but that's not my benchmarks. I wish I had DDR4 memory... if I had DDR4 memory, I'd probably be rocking a sweet ass X99 mobo right now with a 6800k.