Remember PCIe 4.0
Full name: Peripheral Component Interconnect Express 4.0
Memory aid: Four doubles generation three's signaling rate.
A newer device can negotiate a slower supported link.
Study area: Expansion buses · Batch 1
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA Server+
Practice with exam flashcards →Hardware & Components / Knowledge library
PCIe 4.0 — Peripheral Component Interconnect Express 4.0
Identifies a PCIe generation operating at 16 GT/s per lane.
Why learn PCIe 4.0 — Peripheral Component Interconnect Express 4.0?
Identifies a PCIe generation operating at 16 GT/s per lane.
Where it came from
A newer device can negotiate a slower supported link.
- Memory aid (a learning cue, not the expansion): Four doubles generation three's signaling rate.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand PCIe 4.0: Peripheral Component Interconnect Express 4.0.
- Recall this memory aid: Four doubles generation three's signaling rate.
- Explain the practical use: Identifies a PCIe generation operating at 16 GT/s per lane.
- Explain this distinction: A newer device can negotiate a slower supported link.
- Identify PCIe 4.0 in a device specification, architecture diagram, or system inventory.
Documentation and sources
- PCI-SIG specifications (pcisig.com)