Hurray! My new SanDisk Extreme Pro USB 3.0 128GB flash drive just came this morning.
I have now run a few tests on it and compared it directly with the SanDisk Extreme USB 3.0 64GB flash drive.
I tested the Pro using Crystal DiskMark and then filled to entire drive with junk data and then repeated the test. This ensured that the flash controller had to perform a read-erase-write cycle on every write when running any further tests. However, there was no difference between benchmarks after I had filled it with junk data and then re-formatted it. This indicates that the USB controller always does a read-erase-write cycle on every write (so not an SSD controller).
The Crystal DiskMark results are shown below:
Extreme Pro 128GB $70 |
Extreme 128GB $60 |
I have now run a few tests on it and compared it directly with the SanDisk Extreme USB 3.0 64GB flash drive.
I tested the Pro using Crystal DiskMark and then filled to entire drive with junk data and then repeated the test. This ensured that the flash controller had to perform a read-erase-write cycle on every write when running any further tests. However, there was no difference between benchmarks after I had filled it with junk data and then re-formatted it. This indicates that the USB controller always does a read-erase-write cycle on every write (so not an SSD controller).
The Crystal DiskMark results are shown below: