How long does it take to write 500 GB to a SATA SSD? Drive cloning guide
Writing 500 GB to a SATA SSD at the 550 MB/s (4.4 Gbps) ceiling works out to 15 minutes 9 seconds. That's the realistic figure for cloning an OS drive to a new SSD, or for restoring a large backup. SATA III's 6 Gbps raw protocol overhead lands on 4.4 Gbps effective after 8b/10b encoding.
Calculator
Data Transfer Calculator
Configuration
Speed Comparison
How this is calculated
SATA SSDs sustain their 550 MB/s rate indefinitely, unlike NVMe drives whose SLC cache can bottleneck long writes. That predictability is SATA's remaining advantage in 2026. For a drive that just has to be "fast enough and reliable," SATA's sustained write is more consistent than a consumer NVMe drive during the slow-tier portion of a long transfer. SATA is still the right answer for bulk storage on budget machines and for older systems without M.2 slots.
Verdict
15 minutes for 500 GB is the SATA SSD benchmark for OS cloning and backups. It's 4-5x slower than NVMe but 3-4x faster than a 7200 RPM hard drive, good enough for most workflows that don't revolve around storage throughput.
More Storage scenarios
Frequently asked questions
How long does it take to clone a 500 GB drive to a SATA SSD?
Related tools
Display Bandwidth Calculator
Check if your HDMI/DP cable supports your resolution and refresh rate.
Use tool ➜RAID Calculator
Calculate usable capacity and fault tolerance for RAID 0, 1, 5, 6, and 10.
Use tool ➜RAM Latency Calculator
Convert DDR3/DDR4/DDR5 timings (CL, tRCD, tRP, tRAS) into true latency in nanoseconds.
Use tool ➜Data Read Visualizer
Visualize the massive speed difference between CPU cache, RAM, and storage.
Use tool ➜