Oreton S500 Pro 256GB SATA SSD
Here you will find a detailed speed, performance and benchmark test review. Tested was the SATA SSD S500 Pro with 256GB (S500Pro-256) from the brand Oreton.
| Technical specifications (manufacturer information) | |
| Product image |
|
| Manufacturer | Oreton |
| Model number | S500Pro-256 |
| Capacity | 256 GB (238 GiB) |
| pSLC cache | 83 GB approx. |
| Read speed | 550 MB/s |
| Write speed | 520 MB/s |
| Interface | SATA 6 Gbps |
| Connector | 2.5" |
| Memory module (NAND) | TLC |
| TBW (Total Bytes Written) | 150 terabyte |
| Warranty | 3 Years |
| Controller | YEESTOR YS9085N |
Compare product Compared to the test winner*
v0.145a Drive: 0(ATA) OS: 10.0 build 19045 Model: S500Pro-256 Fw : HT3618C1 Size : 244198 MB [256.1 GB] From smart : [May 23 2023] From ATA id: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix 3dv7-176L TLC 16k 512Gb/CE 512Gb/die Controller : - (1) Bank00: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix 3dv7-176L TLC 16k 512Gb/CE 512Gb/die Bank01: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix 3dv7-176L TLC 16k 512Gb/CE 512Gb/die Bank04: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix 3dv7-176L TLC 16k 512Gb/CE 512Gb/die Bank05: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix 3dv7-176L TLC 16k 512Gb/CE 512Gb/die
We put the Oreton SATA SSD through a detailed test. You can find the test result / test report here:
AS SSD Benchmark
Standard performance test
The standard test was performed with a 1 GB file. A total score of 596 points was achieved.
Copy performance test
A common everyday scenario is simulated here. Three test folders are created:
- ISO (folder with two large files)
- Program (folder with many small files)
- Game (folder with small and large files)
The three folders are copied using the Windows copy command (cache remains enabled). The real-world test from 12 June 2026 shows performance during simultaneous write and read operations. The lower the duration, the better.
| AS SSD Copy Benchmark | Transfer rate: | Duration: |
|---|---|---|
| ISO two large files |
996.72 MB/s |
1.08 s |
| Program typical program folder with many small files |
1,201.44 MB/s |
1.17 s |
| Game a game folder with small and large files |
2,027.72 MB/s |
0.68 s |
Compression performance test
Here, speed is measured depending on how compressible the data is.
CrystalDiskMark Benchmark
Similar to AS SSD, two sequential and two random performance tests are carried out here and the write and read speed (manufacturer specs: 550 MB/s and 520 MB/s) the Oreton SATA SSD is measured.

| CDM | Read [MB/s] | Write [MB/s] |
|---|---|---|
| SEQ1M Q8T1 |
540.16 |
465.02 |
| SEQ1M Q1T1 |
510.57 |
456.10 |
| RND4K Q32T16 |
125.29 |
179.29 |
| RND4K Q1T1 |
24.11 |
95.55 |
IOPS (Input/Output operations per second)
| CDM | Read [IOPS] | Write [IOPS] |
|---|---|---|
| SEQ1M Q8T1 |
515.10 |
443.50 |
| SEQ1M Q1T1 |
486.90 |
435.00 |
| RND4K Q32T16 |
30,588.60 |
43,772.70 |
| RND4K Q1T1 |
5,885.00 |
23,327.40 |
Average latency
| CDM | Read [µs] | Write [µs] |
|---|---|---|
| SEQ1M Q8T1 |
15,499.10 |
17,967.60 |
| SEQ1M Q1T1 |
2,052.55 |
2,297.29 |
| RND4K Q32T16 |
16,699.30 |
11,675.00 |
| RND4K Q1T1 |
169.73 |
42.74 |
HD Tune Pro long-term test
A long-term test was performed to fully utilize the storage. You can see at what point the cache (if present) becomes full and write performance drops. A test file of 100 GB was written to the medium. After approx. 83 GB, the cache was full and performance was throttled.
The test file could at least be read with an average read speed of 468 MB/s and written at 178 MB/s.
ATTO Disk Benchmark
Here, a 256 MB file is written to the Oreton SATA SSD multiple times. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster writing and reading usually becomes.

You can find information about the test system at the bottom of the homepage.
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