PCIe 7.0 draft 0.5 spec available: 512 GB/s over PCIe x16 on track for 2025

PCIe 7.0 is is the next generation interconnect technology for computers that is set to increase data transfer speeds to 128 GT/s per pin, doubling the 64 GT/s of PCIe 6.0 and quadrupling the 32 GT/s of PCIe 5.0. This would allow a 16-lane (x16) connection to support 256 GB/sec of bandwidth in each direction simultaneously, excluding encoding overhead. Such speeds will be handy for future datacenters as well as artificial intelligence and high-performance computing applications that will need even faster data transfer rates, including network data transfer rates.
↫ Anton Shilov at AnandTech

PCIe 7.0 won’t hit devices until late 2020s.