SK Hynix Details Its DDR5 Chip Technology

Discussion in 'HardForum Tech News' started by cageymaru, Feb 21, 2019.

  1. cageymaru

    cageymaru [H]ard|News

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    During the International Solid State Circuits Conference (ISSCC) in San Francisco, SK Hynix chip designer Dongkyun Kim presented a paper on the company's first Double Data Rate 5 (DDR5) chip that features 16Gb 6.4Gb/s/pin SDRAM that runs at 1.1V and measures 76.22mm2. SK Hynix uses a 1ynm, 4-metal DRAM process to manufacture the chips. Dylan McGrath of EE|Times noted that the DDR5 spec hasn't been finalized but is expected to offer "double the bandwidth and double the density of DDR4 along with delivering improved channel efficiency."

    Samsung was much more secretive with their 10nm-class LPDDR5 SDRAM capable of up to 7.5Gb/s at 1.05V. The JEDEC LPDDR5 standard will "operate at an I/O rate of 6400 MT/s, 50% higher than that of the first version of LPDDR4" and will "boost memory speed and efficiency for applications including smartphones, tablets and ultra-thin notebooks."

    DDR5 -- or Double Data Rate 5 -- is still under development at the Jedec standards organization. DDR5 offers double the bandwidth and double the density of DDR4 along with delivering improved channel efficiency. The standard was expected to be finalized last year, but remains a work in progress. DDR5 products are now expected to appear beginning late this year.
     
  2. Elf_Boy

    Elf_Boy 2[H]4U

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    Double the data rate square the price is my guess.

    If I had 27 billion laying around I'd make a fab too.
     
  3. mda

    mda [H]ard|Gawd

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    I thought that the DDR5 spec was finalized already?

    How soon is the 'typical'/'expected' time from spec finalization to rollout in actual consumer products?

    IIRC for DDR4, the spec was finalized sometime in 2012 but we first saw consumer DDR4 products in 2015 with Skylake.
     
  4. psyclist

    psyclist Gawd

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    Early 2021 is my estimate. AMD said they will support AM4 through 2020, next socket AM5? with DDR5 will therefore be 2021.
     
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  5. benedict

    benedict n00b

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    Hopefully AMD will make AM4+ which will support both DDR4 and 5.
     
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  6. Sufu

    Sufu [H]ard|Gawd

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    Maybe if DDR5 becomes mainstream, DDR4 will finally be affordable. DDR4 ECC prices on ebay are like 4x the cost of high speed DDR3 ECC.
     
  7. psyclist

    psyclist Gawd

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    DDR4 prices are supposed to drop quite a bit this year from recent reports im pretty sure