What is UFS 4.0 Storage? All you need to know about UFS 4.0

What is UFS 4.0 Storage? All you need to know about UFS 4.0. UFS 4.0 brings improved speed, increased longevity, and decreased power consumption over its predecessor. After two years, Samsung Semiconductor finally announced the latest UFS 4.0 flash storage solution for smartphones and other electronic devices.

Universal Flash Storage (UFS) has become common in almost all smartphones these days. It has replaced eMMC storage in most budget smartphones as well. Now, after 2 years, Samsung Semiconductor has announced the next UFS storage series, which is UFS 4.0 flash storage solution for smartphones and other devices.

So, what’s new, and how is it better than its predecessor? We’ll walk you through the new UFS 4.0 technology, how it compares to UFS 3.1, and how beneficial it is for the future of Android smartphones.

What Is UFS 4.0? – UFS 4.0 Explained

UFS 4.0 is the next generation of UFS technology defined by JEDEC. Samsung has designed it using the 7th gen V-NAND flash memory technology and its in-house proprietary controller. There is a UniPro 2.0 transparent layer and the MIPI M-PHY v5.0 physical layer as well.

Using its seventh generation V-NAND flash memory technology and its in-house proprietary controller, Samsung designed UFS 4.0. It also incorporated the UniPro 2.0 transport layer (which connects components to the chipset to transfer data) and the MIPI M-PHY v5.0 physical layer.

That’s complex, so let’s break it down. NAND flash memory is a storage technology that can retain data without electricity. V-NAND is an enhancement over NAND technology because the cell planes within are stacked vertically. This leads to improved speed, increased longevity, and decreased power consumption. Samsung has incorporated this technology into UFS 4.0, though the precise proprietary controller it’s using is unknown.

How Does UFS 4.0 Compare to UFS 3.1?

UFS 4.0 is a significant improvement over UFS 3.1. UFS 4.0 can deliver sequential read and write speeds up to 4200MB/s and 2800MB/s, respectively. In contrast, UFS 3.1 provides sequential read and write speeds up to 2100MB/s and 1200MB/s, respectively.

In addition, UFS 4.0 has a maximum bandwidth of up to 23.2Gbps per lane, which is twice the speed of UFS 3.1. The UFS interface supports dual-lane transmission, allowing simultaneous read and write operations. This improvement benefits 5G smartphones, automotive applications, and AR/VR-enabled devices that require vast data processing.

Samsung has made significant progress with UFS 4.0 as far as power efficiency is concerned. It consumes 46% less power than the previous generation while still providing twice the performance.

Samsung kept its size compact with maximum dimensions of 11 x 13 x 1mm to enhance its compatibility with smartphones and other electronic devices. Moreover, Samsung stated that UFS 4.0 supports a maximum capacity of 1TB, double that of UFS 3.1’s 512GB. This storage capacity for smartphones and portable devices is more than enough.

Speed Comparison: UFS 4.0 vs UFS 3.1 vs UFS 3.0 vs UFS 2.2

Here is the speed comparison between UFS 4.0, UFS 3.1, UFS 3.0, and UFS 2.2. As you can notice from the table below, UFS 4.0 is indeed a monumental upgrade over UFS 3.1.

 UFS 4.0UFS 3.1UFS 3.0UFS 2.2
Sequential Read Speed4200MBps2100MBps2100MBps1000MBps
Sequential Write Speed2800MBps1200MBps410MBps260MBps
Random ReadNot known yet100,000 IOPS63,000 IOPS58,000 IOPS
Random WriteNot known yet70,000 IOPS68,000 IOPS50,000 IOPS

What Phones Will Come With UFS 4.0s Storage?

Currently, none of the smartphone makers have announced smartphones with UFS 4.0. However, Samsung Semiconductor has announced that UFS 4.0 mass production will start in the third quarter of 2022. It basically means that upcoming Samsung flagship phones, beginning with the Galaxy S23 series, will be the first to include the latest UFS 4.0 flash storage in Q1 of 2023.

Following that, we expect flagship smartphones from OnePlus, Xiaomi, Oppo, Google, and other phone makers to also come with UFS 4.0 storage in 2023. As for iPhones, Apple uses NVMe storage in place of UFS due to better write speeds than UFS.

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