10-18-2018, 01:18 AM
https://www.techpowerup.com/248656/caden...-data-rate
Quote:DDR5 will be the next step in DDR5 memory tech, again bringing increased transfer speeds over the previous JEDEC (the standards body responsible for the DDR specifications) specification. The new memory technology will also bring the customary reductions in operating voltage - the new version will push the 64-bit link down to 1.1V and burst lengths to 16 bits from 1.2V and 8 bits. In addition, DDR5 lets voltage regulators ride on the memory card rather than the motherboard. CPU vendors are also expected to expand the number of DDR channels on their processors from 12 to 16, which could drive main memory sizes to 128 GB from 64 GB today.
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JEDEC's specification for DDR5 is set at 4800 MT/s, but it's expected the memory tech will scale to 6400 MT/s, and you know overclocking and performance-focused companies will walk all over the standard.
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Cadence says that while comparing DDR4 3200 vs DDR5 3200, there is already an increase in bandwidth of 1.36X - yes, at the same data rate. Add in the frequency increase (and consider the density increase as well), and there's a 1.87x increase in performance when comparing DDR4 3200 to DDR5 4800. Ramp for server/datacenter and other professional environments will start in 2019, with the technology entering the consumer market in 2020 - interestingly, the same longevity AMD themselves gave their Zen architecture.