WHAT IF -- some how we replace the hard drive with RAM

[Vadilal Ice Cream]

WHAT IF. it might not be possible. but figuratively. what if we replaced our hard drive with ram. ram is 100 times faster than any hard drive including ssd. and now the price of ram has significantly reduced. so what if we replace a 128 ssd with 128 gb ram? is it possible now. if it is how do we do it? if not, lets say we are able to do it, what can we expect? 

[Oshino Shinobu]

You can expect to lose all of your data when you power off your PC as RAM is volatile memory, not a great solution for permanent data storage. 

[ImNotThere]

RAM or system memory is volatile memory so we cant really store anything on them like a hdd or ssd 

[asand1]

Thats pretty much what an SSD is minus the volatility.

[Froody129]

You can already do this using a RAM disk . As others have said, RAM is volatile and you’d lose everything every time you turned the PC off

[ProjectBox153]

No, RAM is volatile memory, meaning that it doesn't store anything when it doesn't have power. Lose power, lose everything in your RAM. That's how it always is, and is why RAM drives aren't always the best. You can't install an operating system on a RAM drive, as you have to use software to create said drive. Also, even if you have a UPS, your power supply could still fail and you could still lose everything. 

[Lord Nicoll]

Yes you can do this, you can use RAM disks, and you can also buy non-volatile RAM, however that is VERY specialised RAM that has a bloody battery attached. 

[porina]

Take the in between point of ram and flash, with Optane. It's price per capacity is between flash and ram, as is its performance. Higher sequential transfer rates probably don't help much of anyone, but the low queue depth random read rate of Optane blows away high end NVMe SSDs. I just wish they release consumer models in higher densities than the 32GB offered so far. The enterprise model is a bit too spendy for me.