The 990 EVO from Samsung can be operated with the PCIe 5.0 standard, but is limited to two lanes (x2) and strictly speaking behaves like a PCIe 4.0 SSD. A somewhat expensive and not particularly fast PCIe 4.0 SSD at that.

Our test shows that the Samsung 990 EVO 2TB is an M.2 SSD with acceptable speeds. However, the write performance drops sharply once the SLC cache has been filled. The access times could also be significantly faster. In return, Samsung offers a five-year warranty and a load capacity of 1,200 TByte for the 990 EVO...

If you are looking to buy a new SSD for your computer, notebook or even a current games console, the Samsung 990 EVO is a good choice. The five-year manufacturer's warranty provides additional peace of mind.

Samsung's first PCIe 5.0 SSD is only a half SSD, in 4.0 slots it is just as fast as in 5.0 slots. As a typical Evo SSD, it is significantly slower than the Pro series, but also cheaper. It is strange that it is much faster in a test than Samsung claims: Samsung promises around 5 GByte/s for sequential reading, which we also achieved with one worker and a query depth of 32...