UFS 4.0 vs NVMe Stroage: Benchmark,Read/Write Speed Comparison

Like desktop computers, smartphones depends on flash storage for top-notch performance, which directly impacts their overall functionality. UFS (Universal Flash Storage) and NVMe (Non-Volatile Memory Express) are two key types of flash storage that elevate device performance.

UFS storage finds extensive use in smartphones, whereas NVMe is predominantly employed in PCs. However, Apple stands out by utilizing NVMe for iPhone¬† storage since years. Given that many of the latest Android flagship devices have already started adopting the UFS 4.0 which is the most recent iteration of UFS. UFS 4.0 was found significantly faster compared to the last generation UFS 3.1. Now let’s explore how it compares to NVMe storage.

Ufs 4.0 stroage UFS 4.0

  • Sequential read speed: upto 4200 MB/s
  • Sequential write speed: upto 2800 MB/s


  • Sequential read speed: upto 3500 MB/s
  • Sequential write speed: upto 3000 MB/s

While UFS 4.0 storage exhibits impressive theoretical speeds in ideal lab conditions, real-world performance often falls short of these benchmarks. In practice, both UFS 4.0 and NVMe storage experience reduced speeds, with NVMe demonstrating a performance closer to UFS 3.1 storage.

UFS 4.0 vs NVMe Stroage speed Benchmark between Vivo iqoo 11 and iPhone 14 pro max
OnePlus 11 (left) vs iPhone 14 pro max ( Right) @SaiTechGuru

In a storage speed benchmark test comparison uploaded by @SaiTechGuru, we get a rough idea on the performance of NVME and UFS 4.0 storage. The OnePlus 11, equipped with UFS 4.0, and the iPhone 14 Pro Max, featuring the latest NVMe storage, the observed speeds indicate that the theoretical advantages of these technologies may not fully translate into real-world performance.

Speed test OnePlus 11 vs iPhone 14 pro max ( UFS 4.0 vs NVMe)

UFS 4.0 (OnePlus 11) NVME (iPhone 14 Pro Max)
Theoretical Read Speed 4200 MB/s 3500 MB/s
Theoretical Write Speed 2800 MB/s 3000 MB/s
Average Read Speed 3192.4MB/s 1612.0MB/s
Average Write Speed 2876.3MB/s 1561.4MB/s
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