Wait, but the drive models: Samsung 850 EVO vs. 950 PRO. The 950 PRO is NVMe, while the 850 EVO is SATA. 4K performance can vary a lot between these interfaces. The user might be mixing up models or trying to compare. I should address that.
I need to make sure to explain 4K performance in simple terms, maybe mention that it's different from sequential speed, and how it affects real-world usage. Also, highlight the importance of verifying performance, especially if the drive is being used for specific applications that require high random I/O. ssis950+4k+verified
Also, "verified" could mean the drive has been benchmarked and meets certain performance standards, ensuring reliability. Maybe the user wants reassurance that their drive is performing as expected in 4K reads/writes. Wait, but the drive models: Samsung 850 EVO vs