The encoding takes 8 bits and turns them into 10 for DC balance and to help the clock recovery system. You are basically losing 20% of your bandwidth to encoding overhead.
PCIE Gen 3 and above have switched to 64b/66b encoding for less overhead.
https://en.wikipedia.org/wiki/64b/66b_encoding
The encoding takes 8 bits and turns them into 10 for DC balance and to help the clock recovery system. You are basically losing 20% of your bandwidth to encoding overhead.
PCIE Gen 3 and above have switched to 64b/66b encoding for less overhead.
https://en.wikipedia.org/wiki/64b/66b_encoding