My motherboard has a 2nd NVMe M.2 slot; PCIe gen3 x2. I was wondering how those x2 PCIe lanes would compare with using a 2.5" SATA III drive? By pure bit-rate, the 6Gb/s SATA interface should be noticeably slower than the 16Gb/s PCIe x2 interface. But being as how this drive would be used solely for game and maps loads, would that even matter? I have both an unused M.2 PCIe gen3 x4 drive and a spare 2.5" SATA III drive available.