TEST: Silicon Power UD85 1TB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD UD85 with 1TB (SP01KGBP44UD8505) from Silicon Power.
Score
4195
Price/GB
0,08 €


Technical data
Image UD85
Manufacturer Silicon Power
Model number SP01KGBP44UD8505
Storage capacity 1024 GB (954 GiB)
pSLC-Cache 256 GB approx.
Read speed 3600 MB/s
Write speed 2800 MB/s
Interface PCIe 4.0 x4
Connection M.2 2280
Memory module (NAND) QLC
DRAM Cache no
TBW (Total Bytes Written) 600 Terabyte
Controller Realtek RL6817
Price ca. 85 USD (= 0,08 $ / GB)
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Compared to the top performer*
Read speed
68 %
Write speed
45 %

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

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 4195 points was achieved.

AS SSD TEST: Silicon Power UD85 1TB

AS SSD Read: Write:
Seq
in megabytes per second
4206,27 MB/s
2740,34 MB/s
4K
in megabytes per second
63,70 MB/s
160,67 MB/s
4K-64Thrd
in megabytes per second
874,26 MB/s
1764,16 MB/s
Access time
in milliseconds
0,024 ms
0,124 ms
Score
1359
2199
Total score
4195

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 January 09, 2024 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Silicon Power UD85 1TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
1942,13 MB/s
1,18 s
Program
many small files
1218,01 MB/s
5,78 s
Game
small and large files
1996,55 MB/s
3,46 s

Compression Performance Test

Here, the writing and reading speed of the the Silicon Power SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 3600MB/s and 2800MB/s respectively).

AS SSD TEST: Silicon Power UD85 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: Silicon Power UD85 1TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
4778,73
2913,69
SEQ1M
Q1T1
3872,45
2919,07
RND4K
Q32T16
960,23
2004,32
RND4K
Q1T1
71,62
176,76

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
4.557,40
2.778,70
SEQ1M
Q1T1
3.693,10
2.783,80
RND4K
Q32T16
234.431,00
489.335,00
RND4K
Q1T1
17.485,80
43.153,80

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
1.754,29
2.873,96
SEQ1M
Q1T1
270,62
358,95
RND4K
Q32T16
2.176,87
1.043,33
RND4K
Q1T1
57,08
23,05

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Silicon Power M.2 SSD. The transfer data of the read speed is displayed graphically. The minimum, maximum and average values are also determined. The determined access time and burst rate are also displayed.

HD Tune TEST: Silicon Power UD85 1TB

ATTO Disk Benchmark

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

ATTO Disk Benchmark TEST: Silicon Power UD85 1TB


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