How much faster is PCIe compared to the SATA bus?

[fordongreeman]

How much faster is PCIe compared to the SATA bus?

M2 drive use the PCIe bus, while hard drives and SSD's use the SATA.

Intel's Z370 chipsets give M2 drives their own dedicated PCIe lane.

 

[D JAY Cva]

sata :up to 600 MB
Pcie : up to 8000 MB

 

[fordongreeman]

sata :up to 600 MB
Pcie : up to 8000 MB

Does that make a difference in gaming?

 

[D JAY Cva]

you wont see or feel any difference in gaming performance .. the only difference i experienced is the data transfer rate ...

 

[TJ Hooker]

Theoretical maximums:
SATA 3: 600 MB/s
PCIe 3.0 x4 (typical for NVMe M.2 SSD): 4 GB/s

Actual speeds will depend on the particular drive and what sort of read/write operations you're doing. Also, benchmark speeds don't necessarily translate well to noticeable, real-world differences in speed.

No, it will not make a difference for gaming, other than maybe load times.