PCI lane requirements

Looking at the hardware recommendations on the Aximmetry website. Specially the recommendations call for 2 x PCIe 3.0 x16 slots.

Does this mean that each slot needs to be wired for x16 lanes? Or does this refer to the slot size of x16?

thank you

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Comments

Eifert@Aximmetry
  -  

Hi,

2x PCIe 4.0 x 16 slots and it refers to the slot size (Though the GPU may require all x16 slot lanes. In other words, both slots are recommended to have x16 size, and one is recommended to have x16 lanes as well).

In general, you should check the physical size requirements for your GPU and capture card. These are usually described as PCIe x16 card slots. Next, ensure that the motherboard’s layout allows both cards to fit without obstruction.

Additionally, confirm your GPU, capture card, and any NVMe SSDs' PCIe requirements to avoid bandwidth limitations. Note that even if a motherboard has two x16-sized slots, it may not provide a full 16 lanes to both slots simultaneously. Some motherboards only support a total of 20 PCIe lanes at full speed, and newer high-end GPUs typically require a full 16 dedicated lanes for maximum performance.

Warmest regards,