ADATA LEGEND 800 500GB M.2 SSD
Here you will find a detailed speed, performance and benchmark test review. Tested was the M.2 NVMe SSD LEGEND 800 with 500GB (ALEG-800-500GCS) from the brand ADATA.
| Technical specifications (manufacturer information) | |
| Product image | 
|
| Manufacturer | ADATA |
| Model number | ALEG-800-500GCS |
| Capacity | 500 GB (466 GiB) |
| pSLC cache | 176 GB approx. |
| Read speed | 3500 MB/s |
| Write speed | 2200 MB/s |
| Interface | PCIe 4.0 x4 |
| Connector | M.2 2280 |
| Memory module (NAND) | TLC |
| DRAM cache | No |
| TBW (Total Bytes Written) | 300 terabyte |
| Controller | Realtec RTS5770DL |
Compare product Compared to the test winner*
v0.15a OS: 10.0 build 19045 Drive : 0(NVME) Scsi : 2 Driver : W10 Model : ADATA LEGEND 800 Fw : VF142C69 HMB : 32768 - 65536 KB (Enabled, 64 M) Size : 476940 MB [500.1 GB] LBA Size: 512 Fw Str : [REALTEK_RL6817 ] [p|o?k`] Bank00: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank02: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank08: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank10: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank16: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank18: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank24: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 512Gb/CE 512Gb/die Bank26: 0xad,0x7e,0x28,0xb,0x0,0xc0,0x0,0x0 - Hynix TLC 16k 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 5028 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 |
2,076.80 MB/s |
1.11 s |
| Program typical program folder with many small files |
1,140.96 MB/s |
6.17 s |
| Game a game folder with small and large files |
1,867.14 MB/s |
3.70 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: 3500 MB/s and 2200 MB/s) the ADATA SSD is determined.
| CDM | Read [MB/s] | Write [MB/s] |
|---|---|---|
| SEQ1M Q8T1 |
4,267.12 |
4,119.27 |
| SEQ1M Q1T1 |
3,147.04 |
4,115.36 |
| RND4K Q32T16 |
1,827.14 |
2,002.46 |
| RND4K Q1T1 |
65.93 |
164.42 |
IOPS (Input/Output operations per second)
| CDM | Read [IOPS] | Write [IOPS] |
|---|---|---|
| SEQ1M Q8T1 |
4,069.40 |
3,928.40 |
| SEQ1M Q1T1 |
3,001.30 |
3,924.70 |
| RND4K Q32T16 |
446,080.00 |
488,882.00 |
| RND4K Q1T1 |
16,097.20 |
40,141.80 |
Average latency
| CDM | Read [µs] | Write [µs] |
|---|---|---|
| SEQ1M Q8T1 |
1,964.60 |
2,031.74 |
| SEQ1M Q1T1 |
333.04 |
254.61 |
| RND4K Q32T16 |
1,144.59 |
1,046.33 |
| RND4K Q1T1 |
62.00 |
24.80 |
HD Tune Pro long-term test
A long-term test was performed to fully utilize the storage. You can see from when a possible cache is full and write performance drops. A test file of 200 GB was written to the medium. After approx. 176 GB, the cache was full and performance was throttled.
The test file could at least be read with an average read speed of 2,953 MB/s and written at 1,434 MB/s.
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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