Storage Performance

CrystalDiskMark

CrystalDiskMark measures raw sequential and random read and write speeds of storage devices. It provides a quick look at how well a drive handles large file transfers and lighter mixed workloads.


The GMKtec M6 Ultra ships with a generic PCIe Gen 3 NVMe SSD, and the benchmark results line up with that. With reads around 2,599 MB/s and writes reaching roughly 3,555 MB/s, performance is perfectly fine for everyday use, including booting Windows, launching apps, and general file work. While it does not match the speeds of Gen 4 drives found in more expensive Mini-PCs, the system still feels quick in regular desktop tasks, and the Gen 3 performance should not get in the way of day-to-day productivity.

3DMark Storage

3DMark's storage test simulates real-world gaming behavior such as level loading, asset streaming, and background patching, offering a more practical view of storage performance than raw throughput alone.


The M6 Ultra scores 1,901 in the 3DMark Storage test. This puts it behind Gen 4-equipped systems, but still ahead of SATA-based and older PCIe setups. For lighter workloads the included drive is OK, but users who install large games frequently or move sizable files will notice its limits.