SK Hynix starts churning out 18GB LPDDR5 mobile memory chips – with ASUS first in line

South Korea's SK Hynix has started mass production of its first 18GB LPDDR5 memory chip. The DRAM, which would be the largest currently available on the market, will debut on ASUS's upcoming ROG 5 smartphone that is expected to see a formal launch later this month. Although the ASUS ROG 5 is primarily intended for mobile …

[tip pc]

speed quoted is NOT correct, 800MBps is not brisk

“ SK Hynix claimed its latest LPDDR5 DRAM runs at a brisk 6,400Mbps”

Most decent nvme will cruise at 16,000Mbps.

Even if this ram runs at 6,400MBps I would have expected ~ 10 x faster than that.

Samsung has the same 6,400Mbps on their site attributed to pin speed for a total of 51.2GBps which is more like it.

https://www.samsung.com/semiconductor/dram/lpddr5/

[Sgt_Oddball]

Re: speed quoted is NOT correct, 800MBps is not brisk

I does indeed feel like it's missing a 0 considering that DDR4 at it slowest chugs along at a leisurely 21,300 Mb/s...

6,400mbps on the other hand fits in with the data rate of DDR3-800 ram which rolled out before the iPhone was a thing (it was announced in 2005 for those looking into this).

Not exactly setting the world on fire. Unless its the energy requirements that are an order of magnitude better in which case I'd be more impressed with that.

[Jon 37]

Re: speed quoted is NOT correct, 800MBps is not brisk

I agree.

Wikipedia ( https://en.wikipedia.org/wiki/LPDDR ) says that it's 6400Mbit/s per pin, with the choice of 32-bit or 64-bit bus width. Multiplying 6400Mbit/s per pin times the 64-pin bus width gives your 51.2 gigabytes/second figure.