Do SSD Drives mean no need for RAM?

Aren't these drives essentially RAM? Will these eliminate RAM all together?

 

I believe SSD drives ARE essentially DDR-SD RAM, but used as secondary memory, as a hard disk, so you still need proper RAM (primary memory) for any system.

 

You still need RAM.

 

They are very different between RAM and SSD. The obvious reason that SSD could not replace RAM is speed since RAM is much faster than SSD which is based on Flash!

Okay, the reason why we need RAM is for CPU to read/store data without wasting much time and for making computer cheap enough for most people. As you already know, previously HDD runs as mechanic speed which can't compare to CPU speed indeed, but SSD runs as electrical speed now. However, the speed we get from SSD is still far far behind what we get from RAM now.

Maybe when the time Flash is fast enough we may not have to use RAM anymore.

By the way, it's just not only speed we have to think of. For example, a write endurance limit is another issue that Flash can't be a RAM replacement.

 

Good explanation sipp11...that makes a lot of sense!

 

We are not so far off from change as one might think though. There is already alot of talk in the theory that within a few years, the HD/SDD as we know it will be extinct because the NAND (storage) will be small enough to solder onto the mobo in large capacities.

Look at the fact that there is a 32Gb Ipod or Iphone coming out alone.

If you move this to what will probably happen, you may see a 512Gb ssd which is now removeable and just a bit larger than a SD all the while, graphics cards will have several Gb memory chips installed.

Look now... A little company called FusionIo has created a PCI card that replaces the hard drive, all the while maintaining speeds of 800MB/s read and write. Just slip that baby into your desptop.

 

PCI cards has been in the works but it limits the amount of memory. PCI slots are being phased out anyways and SSDs are more efficient.