Performance
The performance has been tested on the AMD Ryzen platform, which contains the Ryzen 9 7950X CPU, Gigabyte B650E Master motherboard, Kingston Renegade RGB 96GB DDR5-6400 memory kit, and Nvidia RTX 4070 FE graphics card.
All tests were performed in a Windows 11 Pro x64 environment with the latest updates.
As usual, in my storage reviews, I will start with the ATTO Disk Benchmark. It’s one of the most popular storage benchmarks, and results are easy to compare at home.
The maximum read bandwidth in the ATTO benchmark is 6.86GB/s, while the maximum write bandwidth is 5.69GB/s. Both values are lower than declared in the product specifications, but it’s normal for the ATTO benchmark. Considering the results of competitive SSDs, the C925 performs well.
The CrystalDiskMark sequential bandwidth results are slightly lower than the maximum declared, but they are close enough to say the SSD performs as advertised – up to 7362MB/s read and 6366MB/s write.
PCMark 10 Storage benchmark results are not the best, but above the average for the DRAM-less SSD.
In the 3DMark Storage Benchmark, we can see the best score we could achieve for DRAM-less SSD. The second in line could reach about 3200 points. It shows that the C925 should be perfect for gaming.
The Blackmagic benchmark also gave us some good results. Most importantly, it confirms that the SSD is fast enough to handle all possible video decoding formats.
Anvil’s Storage Utilities is an older benchmark but still popular, so why not use it?
The results in this benchmark are pretty average and not as high as declared in the SSD specification. However, this is not a problem, as every benchmark uses a different test pattern and test files.
The last test is AIDA64, which is quite demanding, especially in random read and write tests.
The random read test gave us an average bandwidth of 2026MB/s, which is average for Maxio-based PCIe 4.0 x4 SSDs. We can also see relatively high CPU usage, spiking up to 75%.
The random write is also not the highest, with an average bandwidth of 2036MB/s. It’s not the highest, but it should satisfy all users.
The KLEVV C925 is fast but it looks like it could use some improvements. As long as you expect it to perform well but not reach the performance of any top SSD series, then you will be satisfied. The most important for many users will be the low heat and no throttling during the even most demanding tasks.
