PCI

• PCIe

  • Check

• Thunderbolt

  • Chip

• DisplayPort

PCIe

https://en.wikipedia.org/wiki/PCI_Express#History_and_revisions

Per lane:

• Version 1.0a: 2.5 GT/s is 2.5 Gbps on the encoded serial link. This corresponds to 2.0 Gbps of pre-coded data or 250 MB/s

• Version 2.x : 5 GT/s = 500 MB/s

• Version 3.x : 8 GT/s ~= 1 GB/s | upgraded the encoding scheme to 128b/130b from the previous 8b/10b encoding

• Version 4.0 : 16 GT/s ~= 2 GB/s

split: BIOS - PCIe Bifurcation

Check

• Powershell: https://superuser.com/questions/1732084/is-there-a-way-to-identify-the-pcie-speed-for-a-device-using-powershell-win10

• devmgmt.msc : Properties - Details

Thunderbolt

https://en.wikipedia.org/wiki/Thunderbolt_(interface)

• Superseded: IEEE 1394 (FireWire) / ExpressCard

• Connector: v1/v2 - Mini-DP ; v3/v4 - USB-C

• v3/v4: 40 Gbit/s (5 GB/s) bidirectional

  • Thunderbolt 3: 4× PCI Express 3.0, DisplayPort 1.2, USB 3.1 Gen 2

  • Thunderbolt 4: 4× PCI Express 3.0, DisplayPort 2.0, USB4

• USB4 compatible with Thunderbolt 3, and backwards compatible with USB 3.2 and USB 2.0

Chip

• Intel 6000 Series: https://www.thunderbolttechnology.net/sites/default/files/18-241_ThunderboltController_Brief_HI.pdf

  • JHL6340: 4 lanes

    • Peripherial Confiuration: 1

• Intel 7000 Series: https://www.thunderbolttechnology.net/sites/default/files/18-241_Thunder7000Controller_Brief_FIN_HI.pdf

  • JHL7440: 2 Ports, Downstream x4 lanes

    • Peripherial Confiuration: 2 Tunneled, 1 dedicated DP output

DisplayPort

• 4 lanes: https://en.wikipedia.org/wiki/DisplayPort#Specifications

  • Thunderbolt 3 interface which implements up to 8 lanes of DisplayPort