When will we see Triple Data Rate RAM?

[brawnypandora0]

There are now four generations of DDR RAM. When will TDR RAM be out? Since it would be faster than DDR RAM, does that mean only 1GB of it is sufficient?

[3rdalbum]

There are now four generations of DDR RAM. When will TDR RAM be out? Since it would be faster than DDR RAM, does that mean only 1GB of it is sufficient?

There's a couple of things wrong with this post.

DDR is so-called because it transfers data on the rising and falling edges of the clock signal, thus transferring data at twice the rate as the older memory that transfers only at one stage on the clock. DDR2 and DDR3 RAM, depending on the speed purchased, can go at many times the speed of original DDR1 RAM. DDR1 starts at 100MHz, DDR3 goes up to something like 1,600 MHz.

I think if you could get higher speeds by simply transferring data at three stages of the clock signal, it would probably have been done already.

And the second wrong thing with your post is to assume that RAM is there to make the computer fast. It's not. RAM is there to store data that the computer needs; that's its purpose. Even if the RAM was ultra-fast beyond belief, 1 GiB of RAM would not be enough because you'd constantly have to swap data from hard disk to memory in order for the computer to keep running intensive programs. The computer would be very slow because the disk is slow, and that fast RAM would spend most of its time waiting for data.

[LowSky]

the slowest thing on a pc these days is the hard drive. use one with a ssd the difference can be night and day.

the next logical step is to build RAM right onto the processor, and we see that now with cache hitting 10-12 MB on some chips. What is making PC's faster now isnt clock speed but the increase in processor cores and directly connected swapable memory, and now the inclusion of graphic cores added in processors.