Needing PCIe 4.0/5.0 for more FPS
Also searched as: pcie gen fps · pcie 4.0 gaming · pcie 3.0 vs 4.0 fps · pci express version fps · need pcie 4
What it does
Believing your graphics card needs a newer PCIe slot version (4.0 or 5.0) to hit higher frame rates.
The honest verdict
A modern graphics card running in a full-width (x16) PCIe 3.0 slot loses almost nothing versus 4.0 — usually low single digits, often inside the margin of error. Games do not shovel enough data across that link for the version to matter at x16. Where it CAN bite is narrow cases: a card wired for only four lanes (some budget GPUs), or a slot dropped to x8/x4 because an M.2 drive or a second card is sharing the lanes — there a newer PCIe gen recovers real frames. So check how many lanes your card actually gets before worrying about the version. For the typical 'GPU in the top x16 slot' setup, PCIe gen is not your frame-rate lever.
How Compy treats it
Compy won't recommend it. If you're curious anyway: change one thing at a time, measure it on your own rig, and revert unless it's clearly better — that loop is exactly what Compy is built around.
The Compy Blackbook holds 174 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
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