Using Crystal Disk Mark 8 Shizuku Edition. Default settings of 5x 1GB test files.
Sandisk Ultra 32gb
This is an older model that I've used before. I tried a second run on this stick and... it seems to have incurred an error that makes it unwriteable now :/
Seems like this might be the cause, it's basically bricked. Apparently the drive will go read-only in hardware if it detects a power fluctuation or some sort of error, so it keeps your data safe. 
- 2021-10-17
- Fresh out of packet
- $13 AUD from JB Hifi
- USB 3.0
|
Read MB/s |
Write MB/s |
Sequential 1MiB Q8T1 |
161.39 |
23.84 |
Sequential 1MiB Q1T1 |
161.39 |
13.61 |
Random 4KiB Q32T1 |
7.56 |
0.82 |
Random 4KiB Q1T1 |
7.51 |
0.31 |
Sandisk Cruzer Glide 32gb
This is a newer model than the Ultra
Sample 1
- 2021-10-17
- Fresh out of packet
- $11 AUD from JB Hifi
- USB 3.0
|
Read MB/s |
Write MB/s |
Sequential 1MiB Q8T1 |
163.58 |
61.74 |
Sequential 1MiB Q1T1 |
163.34 |
63.39 |
Random 4KiB Q32T1 |
9.33 |
3.02 |
Random 4KiB Q1T1 |
9.25 |
2.72 |
A retest of this unit showed closely repeatable results, which is good.
Sample 2
- 2021-10-20
- Fresh out of packet
- $11 AUD from JB Hifi
- USB 3.0
|
Read MB/s |
Write MB/s |
Sequential 1MiB Q8T1 |
160.51 |
59.22 |
Sequential 1MiB Q1T1 |
158.55 |
62.26 |
Random 4KiB Q32T1 |
9.19 |
2.79 |
Random 4KiB Q1T1 |
9.04 |
2.77 |
Sandisk Ultra Type-C 32gb
This one is naturally newer and faster.
- 2021-10-20
- Fresh out of packet
- $19 AUD from JB Hifi
- USB 3.1 Gen 1
- Rated up to 150MB/s read
|
Read MB/s |
Write MB/s |
Sequential 1MiB Q8T1 |
171.31 |
60.48 |
Sequential 1MiB Q1T1 |
171.21 |
61.06 |
Random 4KiB Q32T1 |
8.31 |
0.71 |
Random 4KiB Q1T1 |
8.23 |
0.70 |
Retesting immediately after shows the random reads drop to about 4 MB/s, so what's going on there? Obviously this isn't very trustworthy.