Samsung has updated its website to include some info on its upcoming 980 PRO SSD. Thanks to its support for PCIe 4.0, it looks like it will be able to read at 7,000 MB/s and write at 5,000 MB/s. It's also capable of 1,000K (yes, a million!) IOPS.
https://www.samsung.com/sg/memory-stora ... -V8P1T0BW/