The data we obtained in our tests allowed some conclusions.
First, we noticed both models have typical performances of value SSDs, with a high sequential read data rate, but with lower rates in write operations and on random accesses. We also noticed the maximum sequential rate of the SanDisk SSD PLUS 120 GiB is higher than the Kingston V300’s.
The tests also show that the performance comparison depends on the type of data we used. On the tests using only zeroes (ZeroFill), where the data is easily compressible, the SSDNow V300 was typically faster than the SSD PLUS.
However, on the test with non-compressible data (what simulates the typical real-life big files, such as audio, video, and picture files) the model from Kingston had a big performance reduction, mostly on write tests, which is due to the fact the controller used by the V300 depends on data compression to achieve higher performance.
On the other hand, the SSD PLUS from SanDisk does not show a sensible performance reduction on the tests with incompressible data, which is excellent, since it is a typical behavior of most expensive SSDs.
So, which is the best model? Both of them were faster on some tests and slower on others, but as we mentioned, the fact the SanDisk SSD PLUS 120 GiB does not show a loss of performance with incompressible data makes it our recomendation among the tested models.
However, while they are both entry products, any one of them has a good cost/performance ratio and can be a good buy for the user who use only a hard disk on his computer, promoting a sensible performance improvement on the load times of the operating system, programs, and games.