The most recently introduced specification for PCIe is commonly referred to as PCIe Gen 3. In addition to raising transfer rates to 8 GT/s, Gen 3 uses an upgraded encoding/decoding scheme compared to Gen 1 and Gen 2 to reduce overhead to < 2%.
Diodes Incorporated provides PCIe Gen 3 solutions for crystal oscillators (XO), clock generators and buffers, signal conditioners (redrivers / repeaters), and signal switches.