ADATA LEGEND 860 500GB M.2 SSD
Here you will find a detailed speed, performance and benchmark test review. Tested was the M.2 NVMe SSD LEGEND 860 with 500GB (SLEG-860-500GCS) from the brand ADATA.
| Technical specifications (manufacturer information) | |
| Product image | 
|
| Manufacturer | ADATA |
| Model number | SLEG-860-500GCS |
| Capacity | 500 GB (466 GiB) |
| pSLC cache | 173 GB approx. |
| Read speed | 5000 MB/s |
| Write speed | 3000 MB/s |
| Interface | PCIe 4.0 x4 |
| Connector | M.2 2280 |
| DRAM cache | ✓ Yes |
| TBW (Total Bytes Written) | 160 terabyte |
| Warranty | 5 Years |
| Controller | Realtek RTS5772DL |
Compare product Compared to the test winner*
v0.15a OS: 10.0 build 19045 Drive : 0(NVME) Scsi : 2 Driver : W10 Model : ADATA LEGEND 860 Fw : VF100C6B HMB : 32768 - 65536 KB (Enabled, 64 M) Size : 476940 MB [500.1 GB] LBA Size: 512 Fw Str : [REALTEK_RL6817 ] [p| d?] Bank00: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank08: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank16: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank24: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank32: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank40: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank48: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die Bank56: 0x2c,0xc3,0x8,0x32,0xe6,0x30,0x12,0x0 - Micron 96L(B27B) TLC 512Gb/CE 512Gb/die
We put the ADATA NVMe M.2 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 5 GB file. A total score of 5670 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 22 July 2025 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 |
2,066.35 MB/s |
1.11 s |
| Program typical program folder with many small files |
1,118.19 MB/s |
6.29 s |
| Game a game folder with small and large files |
1,895.14 MB/s |
3.65 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: 5000 MB/s and 3000 MB/s) the ADATA SSD is measured.
| CDM | Read [MB/s] | Write [MB/s] |
|---|---|---|
| SEQ1M Q8T1 |
5,250.72 |
4,394.34 |
| SEQ1M Q1T1 |
3,795.83 |
4,437.51 |
| RND4K Q32T16 |
2,198.92 |
2,028.09 |
| RND4K Q1T1 |
69.93 |
168.23 |
IOPS (Input/Output operations per second)
| CDM | Read [IOPS] | Write [IOPS] |
|---|---|---|
| SEQ1M Q8T1 |
5,007.50 |
4,190.80 |
| SEQ1M Q1T1 |
3,620.00 |
4,231.90 |
| RND4K Q32T16 |
536,845.00 |
495,138.00 |
| RND4K Q1T1 |
17,073.50 |
41,072.50 |
Average latency
| CDM | Read [µs] | Write [µs] |
|---|---|---|
| SEQ1M Q8T1 |
1,596.63 |
1,904.77 |
| SEQ1M Q1T1 |
276.04 |
236.09 |
| RND4K Q32T16 |
951.27 |
1,031.85 |
| RND4K Q1T1 |
58.46 |
24.22 |
ATTO Disk Benchmark
Here, a 256 MB file is written to the ADATA NVMe M.2 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.
SSD-Z Benchmark
Similar to HD Tune, a 500 MB file is written to the ADATA NVMe M.2 SSD here. The transfer data is displayed. The more consistent the line, the better. Unfortunately, the tool no longer works correctly from around 4,000 MB/s and no line is displayed (and sometimes incorrect min/max data is shown).
You can find information about the test system at the bottom of the homepage.
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