>To achieve its impressive data transfer rates, PCIe 7.0 doubles the bus frequency at the physical layer compared to PCIe 5.0 and 6.0. Otherwise, the standard retains pulse amplitude modulation with four level signaling (PAM4), 1b/1b FLIT mode encoding, and the forward error correction (FEC) technologies that are already used for PCIe 6.0. Otherwise, PCI-SIG says that the PCIe 7.0 speicification also focuses on enhanced channel parameters and reach as well as improved power efficiency.
So it sounds like they doubled the frequency and kept the encoding the same. PCIe 6 can get up to 256 GB/s, and 2x 256 = 512.
In any case, it'll be a long time before the standard is finished, and far longer before any real hardware is around that actually uses PCIe 7.
>To achieve its impressive data transfer rates, PCIe 7.0 doubles the bus frequency at the physical layer compared to PCIe 5.0 and 6.0. Otherwise, the standard retains pulse amplitude modulation with four level signaling (PAM4), 1b/1b FLIT mode encoding, and the forward error correction (FEC) technologies that are already used for PCIe 6.0. Otherwise, PCI-SIG says that the PCIe 7.0 speicification also focuses on enhanced channel parameters and reach as well as improved power efficiency.
So it sounds like they doubled the frequency and kept the encoding the same. PCIe 6 can get up to 256 GB/s, and 2x 256 = 512.
In any case, it'll be a long time before the standard is finished, and far longer before any real hardware is around that actually uses PCIe 7.