[Special feature] Even the same SSD is so different. Verify speed difference from SATA to 4th generation PCIe-PC Watch

SSDs are indispensable devices for improving the performance of current PCs and for comfortable use of games and applications. The number of PCs made by manufacturers that use SSDs as system drives for booting OSs is increasing year by year, and it can be said that most PCs are now equipped with SSDs. In addition, some users have replaced HDDs installed in their own PCs and PCs made by manufacturers with SSDs, and some users have replaced SATA SSDs with the latest PCI Express 4.0 NVMe SSDs in search of further performance improvement. Will enter.

Although such SSDs are said to be SSDs in a nutshell, the current SSDs include PCI Express 4.0 NVMe SSDs (hereinafter PCIe 4.0 SSDs), PCI Express 3.0 NVMe SSDs (hereinafter PCIe 3.0 SSDs), and SATA SSDs (hereinafter, PCIe 3.0 SSDs). Below, there are three main types of SATA SSDs), and their performances differ greatly.

The fastest is the PCIe 4.0 SSD, which has a maximum read speed of around 7,000MB / s and a maximum write speed of over 5,000MB / s, but this performance is roughly speaking PCIe 3.0 for both read / write. It is about twice as much as SSD, about 14 times as much as read and about 10 times as much as write compared to SATA SSD.

Comparing only the specifications of the drive alone in this way, the performance difference is very large even with the same SSD. But how much difference does this make in actual use? In this paper, not only the benchmark that measures the performance of a single drive, but also the practical performance difference of SSD and HDD from the actual OS startup time, game startup time / loading time, 4K upscale transcoding time of video, etc. Compare and verify.