Here you will find a detailed speed, performance and benchmark test review. Tested was the M.2 NVMe SSD XPOWER XS70 with 2TB (SP02KGBP44XS7005) from the brand Silicon Power.
| Technical specifications (manufacturer information) | |
| Product image |
|
| Manufacturer | Silicon Power |
| Model number | SP02KGBP44XS7005 |
| Capacity | 2048 GB (1863 GiB) |
| pSLC cache | 212 GB approx. |
| Read speed | 7300 MB/s |
| Write speed | 6800 MB/s |
| Interface | PCIe 4.0 x4 |
| Connector | M.2 2280 |
| Memory module (NAND) | TLC |
| DRAM cache | ✓ Yes |
| TBW (Total Bytes Written) | 1400 terabyte |
| Controller | Phison PS5018-E18 |
We put the Silicon Power NVMe M.2 SSD through a detailed test. You can find the test result / test report here:
The standard test was performed with a 5 GB file. A total score of 8139 points was achieved.
A common everyday scenario is simulated here. Three test folders are created:
The three folders are copied using the Windows copy command (cache remains enabled). The real-world test from 28 March 2023 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 |
2,060.64 MB/s |
1.12 s |
| Program typical program folder with many small files |
1,259.83 MB/s |
5.59 s |
| Game a game folder with small and large files |
1,841.62 MB/s |
3.75 s |
Here, speed is measured depending on how compressible the data is.
Similar to AS SSD, two sequential and two random performance tests are carried out here and the write and read speed (manufacturer: 7300 MB/s and 6800 MB/s) the Silicon Power SSD is determined.

| CDM | Read [MB/s] | Write [MB/s] |
|---|---|---|
| SEQ1M Q8T1 |
7,361.53 |
6,929.35 |
| SEQ1M Q1T1 |
4,178.48 |
5,711.15 |
| RND4K Q32T16 |
3,824.29 |
2,933.26 |
| RND4K Q1T1 |
69.37 |
229.97 |
| CDM | Read [IOPS] | Write [IOPS] |
|---|---|---|
| SEQ1M Q8T1 |
7,020.50 |
6,608.30 |
| SEQ1M Q1T1 |
3,984.90 |
5,446.60 |
| RND4K Q32T16 |
933,664.00 |
716,128.00 |
| RND4K Q1T1 |
16,936.80 |
56,144.50 |
| CDM | Read [µs] | Write [µs] |
|---|---|---|
| SEQ1M Q8T1 |
1,138.80 |
1,208.63 |
| SEQ1M Q1T1 |
250.79 |
183.42 |
| RND4K Q32T16 |
531.26 |
693.52 |
| RND4K Q1T1 |
58.90 |
17.67 |
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 300 GB was written to the medium. After approx. 212 GB, the cache was full and performance was throttled.
The test file could at least be read with an average read speed of 6,125 MB/s and written at 4,344 MB/s.
HD Tune writes a 5 GB file to the Silicon Power NVMe M.2 SSD. The transfer data of the read speed is displayed graphically. The minimum, maximum and average values are also determined. The measured access time and burst rate are also shown.

Here, a 256 MB file is written to the Silicon Power 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.

Similar to HD Tune, a 500 MB file is written to the Silicon Power 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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