Samsung Caught Swapping Components in 970 EVO Plus SSD, Major Performance Hit When SLC Cache Is Filled

Samsung has been caught swapping the components in their 970 EVO Plus SSD. The new 3D TLC NAND chips are not performing as well as expected, and users have seen a significant performance hit when the cache is filled.

The Samsung 970 EVO Plus is a high-performance SSD. Samsung has been caught swapping components in the 970 EVO Plus, which results in a major performance hit when the SLC cache fills.

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Samsung-Caught-Swapping-Components-in-970-EVO-Plus-SSD-MajorImage courtesy of Samsung

Choosing a fast SSD has become a particularly difficult procedure that requires considerable study beyond the specs given on the box.

Samsung is the latest storage company to be discovered changing components in certain SSDs without properly informing consumers, following in the footsteps of Crucial and Western Digital. The drive in issue is the 970 EVO Plus, a popular NVMe M.2 drive with read/write speeds of up to 3,500/3,300 MB/s.

The Phoenix controller (S4LR020) in the original 970 EVO Plus has been changed with the Elpis controller, as found by a Chinese YouTuber (S4LV003). This is the same controller that Samsung employs in their 980 PRO SSD, a higher-end device that supports PCIe 4.0 for read/write speeds of up to 7,000/5,000MB/s.

Despite what seems to be a good change on the surface, benchmarks have shown that when Samsung’s redesigned 970 EVO Plus SSD’s SLC cache is depleted, write performance drops like a rock. This is a problem that content producers working with 4K movies and other big files are likely to face.

Samsung has yet to issue a statement confirming the modifications to its 970 EVO PLUS SSD, but storage aficionados may recognize the updated model by looking for a package with a vertical design. A new firmware is also included with the updated version (3B2QEXM7).

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[…] The previous version began at 1,750 MBps and gradually decreased to 1,500 MBps after 40GB. The drive maintained a steady speed of 2,500 MBps on the new version, but after the 115GB SLC cache was depleted, the SSD dropped to 800 MBps. This resulted in a 47 percent drop in performance.

(Image courtesy of Ars Technica and Tom’s Hardware)

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Frequently Asked Questions

Does the 970 Evo Plus have cache?

Yes, the 970 Evo Plus has cache.

Is the 970 Evo Plus worth it over the 970 EVO?

The 970 EVO Plus is a better choice for people who are looking to get the most out of their gaming experience. It has a higher clock speed, better overclocking potential, and more storage space.

How long will a 970 Evo Plus last?

A 970 Evo Plus will last around 3-4 years with moderate usage.

Related Tag

  • 970 evo vs 970 evo plus
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