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Samsung Releases RAM Modules Up To 256 GB
Quote:On the consumer side, Samsung now offers 32GB unbuffered DDR4 memory modules. The module (M378A4G43MB1-CTD) clocks in at 2,666MHz with a CAS latency of 19 and an operating voltage of 1.2V, as specified by JEDEC. Technically, AMD's Ryzen Threadripper processors can support up to 2TB of memory. Therefore, it should be possible to run 256GB on the Threadripper platform. Unfortunately, X399 motherboards are only certified to support up to 128GB. However, the 32GB module should open the door for future motherboards with four DDR4 memory slots to house up to 128GB of memory.
Things get extremely interesting for Samsung's enterprise clients. The 16Gb memory chips have allowed the NAND maker to raise the capacity bar up to 256GB. No, you didn't read that wrong; we're talking about 256GB of memory on a single stick. The module is available in LRDIMM (M386ABG40M50-CYF) and RDIMM (M393ABG40M52-CYF) formats. It operates at 2,933MHz and has a CAS latency of 21 or 24 depending on the model. Despite the huge capacity and frequency, the module's operating voltage adheres to the official JEDEC specification of 1.2V.

Although Samsung's 256GB module is clearly aimed at servers, it's likely just a matter of time before this capacity makes its way to the consumer end.
Quote:The new M378A4G43MB1-CTD DDR4 UDIMM from Samsung is, unsurprisingly, a dual-rank module (x8 / x16 Organization or up to 2 ranks per DIMM and 2DPC configuration). It ticks at DDR4-2666 at a module voltage of 1.2 V. The module itself won't be much to look at, with a green PCB and bare-naked DRAM chips. It is is currently sampling to PC OEMs. It could also be possible for more popular memory manufacturers to get in touch with Samsung for the DRAM chips that make up this module. A single-rank variant of this module could finally make it possible for AMD Ryzen AM4 machines to have 32 GB of dual-channel memory at acceptably high memory clocks.

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