It also depends on how successful it is for the long term, for example companies don’t just look how successful certain new technology will be in a moth they test and so research to see how successful it is within 5-10 years, they also want to know what the kind of performance they should be expecting. A new technology has been developed that can replace the current RAM, this new phase change memory is being tested and developed. It is called the PCM (phase change memory), this is said that it could potentially be the solution for the memory gap. This is important because many have been noticing that the DRAM memory latency has been dropping slowly. Therefore, companies have been looking desperately for a new memory span products. That is why many companies are excited about the PCM. But companies must keep in mind that even though phase change memory will be able to operate at picosecond timescales. It does not guarantee that the technology will fully replace DRAM.