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Samsung quietly prepares DRAM-free PCIe 4.0 SSD with flagship-level read performance

Host Memory Buffer replaces dedicated DRAM inside Samsung's upcoming budget SSD

Leaked specifications reveal 7,150 MB/s speeds from Samsung's mystery SSD

Samsung appears to be preparing a budget PCIe 4.0 NVMe SSD which removes the onboard DRAM cache found in traditional drive designs.

The unannounced model surfaced briefly on Samsung's website recently, before the listing was taken down without any official confirmation from the company.

Listed specifications describe a 1TB drive with sequential read speeds reaching 7,150 MB/s and write speeds reaching 6,450 MB/s.

How Samsung plans to compensate for missing DRAM

Traditional SSDs rely on dedicated DRAM to store the flash translation layer, letting the controller locate data across NAND flash quickly and efficiently.

However, as the global “RAMpocalypse” continues to worsen, even the largest vendors are looking for ways to reduce their dependence on DRAM.

Without that DRAM, drives can suffer higher latency and weaker performance during sustained workloads or heavy multitasking sessions.

To offset this gap, Samsung is using NVMe's Host Memory Buffer (HMB) feature, which reserves a small portion of system memory over PCI Express instead.

That borrowed memory holds mapping metadata rather than user files, connecting logical addresses to their physical NAND locations directly.

HMB generally cannot match the responsiveness of dedicated DRAM, though it improves performance compared to drives with no caching mechanism at all.

The drive carries a 400 TBW endurance rating, a modest figure for a 1TB SSD by current industry standards.

That number hints at Quad-Level Cell (QLC) NAND flash, which stores four bits per memory cell and lowers both cost and durability.

Samsung has not disclosed publicly which specific NAND flash technology sits inside this particular unannounced drive model.

Rising component costs are reshaping SSD design choices

Samsung's move comes as NAND flash and DRAM pricing continue climbing sharply across the broader global storage industry this year.

Removing the DRAM package cuts component costs directly, simplifies PCB design, and helps maintain competitive pricing within the mainstream SSD segment overall.

QLC NAND increases storage density and lowers manufacturing costs, though it trails Triple-Level Cell NAND in sustained write performance and long-term endurance ratings.

It also remains considerably less durable than older Multi-Level Cell (MLC) and Single-Level Cell (SLC) NAND technologies still found in some enterprise storage products.

Despite those trade-offs, the listed sequential speeds of 7,150 MB/s and 6,450 MB/s place the drive alongside many mainstream PCIe 4.0 SSDs with dedicated DRAM caches.

Samsung has not announced pricing, availability, the official product name, or the specific NAND technology used in the drive.

Until those details emerge, the leaked specifications point toward a lower-cost PCIe 4.0 SSD designed to balance competitive performance with reduced manufacturing costs as memory prices continue rising.

Via The Guru of 3D

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In order for stars to form, you need the right ingredients to make it happen: gravity, mass, time, and of course the right type of matter in the form of baryons. Shortly after the Big Bang, the Universe had plenty of them, but they were all very simple: protons, deuterons, helium-3 and helium-4 nuclei, and a tiny bit of lithium-7. These nuclei, made out of protons and neutrons, were all that the Universe gave us to work with prior to the formation of stars. But, in clumps of material small and large, from individual star clusters to enormous galaxy cluster scales and everything in between, these baryons went to work and, across the Universe over the past 13.8 billion years, created sextillions of stars within the observable Universe.

In a very real way, the story of how we ourselves came to be is the story of how baryons evolved, matured, and wound up deducing our own cosmic history . Yet so many mysteries about that process still remain, from the baryon life cycles within galaxies to identifying the right conditions to trigger star-formation in the vastly different environments where they formed throughout cosmic history. Yet, it’s by examining so many different environments where stars do and don’t form, in galaxies of all different masses and metallicities, and in the modern, nearby Universe as well as far back in ancient cosmic history, that we can begin to piece the full story together.

Here to guide us through this topic, and starring in this episode of the Starts With A Bang podcast, I’m so pleased to welcome newly-minted Dr. Ava Polzin to the show . Ava got her Ph.D. from the University of Chicago and is about to begin a postdoc at the University of Toronto, and has a whirlwind tour of information in store for us all on this episode of the podcast. Plus, at the end, there are a few bonuses she was eager to highlight, and you can find the links to two fabulous papers she’s written for the good of the world below:

Astronomy as a Field: https://arxiv.org/abs/2312.04041

Picture an Astronomer: https://arxiv.org/abs/2512.24465

Make sure you tune in; this is one episode you won’t want to miss!

This article Starts With A Bang podcast #131 – The baryon life cycle is featured on Big Think .