TEST: ADATA LEGEND 860 1TB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD LEGEND 860 with 1TB (SLEG-860-1000GCS) from ADATA.
Score
7633
Price/GB
0,08 $


Technical data
Image LEGEND 860
Manufacturer ADATA
Model number SLEG-860-1000GCS
Storage capacity 1024 GB (932 GiB)
pSLC-Cache 250 GB approx.
Read speed 6000 MB/s
Write speed 4000 MB/s
Interface PCIe 4.0 x4
Connection M.2 2280
DRAM Cache ✓ yes
TBW (Total Bytes Written) 320 Terabyte
Controller Silicon Motion SM2268XT2
Price ca. 79 USD (= 0,08 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
100 %
Write speed
90 %

*) Test result evaluated according to AS SSD Score within the same size.


AS SSD Benchmark

Standard performance test

The standard test was performed using a 5 GB file. A total score of 7633 points was achieved.

AS SSD TEST: ADATA LEGEND 860 1TB

AS SSD Read: Write:
Seq
in megabytes per second
6175,33 MB/s
5350,29 MB/s
4K
in megabytes per second
62,41 MB/s
178,12 MB/s
4K-64Thrd
in megabytes per second
2302,45 MB/s
2456,80 MB/s
Access time
in milliseconds
0,020 ms
0,347 ms
Score
2982
3170
Total score
7633

Copy Performance Test

A common everyday situation 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 (the cache remains enabled). The practical test of July 22, 2025 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: ADATA LEGEND 860 1TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
2057,34 MB/s
1,12 s
Program
many small files
1133,50 MB/s
6,21 s
Game
small and large files
1827,88 MB/s
3,78 s

Compression Performance Test

This measures the write and read speed of the ADATA SSD, depending on the compressibility of the data (according to the manufacturer, these should be 6000 MB/s and 4000 MB/s respectively ).

AS SSD TEST: ADATA LEGEND 860 1TB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: ADATA LEGEND 860 1TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
7453,15
6193,60
SEQ1M
Q1T1
4593,05
4868,84
RND4K
Q32T16
3649,89
3015,83
RND4K
Q1T1
77,29
192,24

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
7.107,90
5.906,70
SEQ1M
Q1T1
4.380,30
4.643,30
RND4K
Q32T16
891.087,00
736.286,00
RND4K
Q1T1
18.868,70
46.934,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
1.124,59
1.351,98
SEQ1M
Q1T1
228,14
215,15
RND4K
Q32T16
556,06
692,11
RND4K
Q1T1
52,88
21,18

HD Tune Pro Endurance test

This is a long term test to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 300 GB was written to the medium. After approx. 250 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 3169 MB/s and written with 510 MB/s.

HD Tune Endurance Test TEST: ADATA LEGEND 860 1TB

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the ADATA M.2 SSD. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they were written and read.

ATTO Disk Benchmark TEST: ADATA LEGEND 860 1TB

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the ADATA M.2 SSD here. The transfer data is displayed. The more constant the line, the better. Unfortunately, the tool does not work correctly above about 5,000 MB/s and no line (and sometimes wrong min and max data) is displayed.

SSD-Z TEST: ADATA LEGEND 860 1TB


Information about the test system can be found at the bottom of the home page.
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