PCIe vs PCIe NVMe SSDs: What's the difference?

PCIe vs PCIe NVMe SSDs: What's the difference? nvme vs m 2 slot difference The obvious difference between the two SSDs is their pin layouts The upper SSD in the picture uses B+M key, while the nvme m2 slot Non-Volatile Memory Express drives attach to the Peripheral Component Interconnect Express slot directly on a motherboard instead

nvme pcie slot Generally it is the added DRAM cache in NVMe drives that increases speed and power consumption, the flash memory itself is probably similar, so