![GeForce RTX 4090 and Core i9-13900K PCIe scaling test shows 2% difference between x16 and x8 modes - VideoCardz.com GeForce RTX 4090 and Core i9-13900K PCIe scaling test shows 2% difference between x16 and x8 modes - VideoCardz.com](https://cdn.videocardz.com/1/2023/03/performance-matchup_4k.png)
GeForce RTX 4090 and Core i9-13900K PCIe scaling test shows 2% difference between x16 and x8 modes - VideoCardz.com
![Pci Express 4.0 X16 X8 X4 Adapter Increased Height Card Gen4 Pci-e Slot Riser Extender Graphics Card Gpu Protection Io Test Card - Pc Hardware Cables & Adapters - AliExpress Pci Express 4.0 X16 X8 X4 Adapter Increased Height Card Gen4 Pci-e Slot Riser Extender Graphics Card Gpu Protection Io Test Card - Pc Hardware Cables & Adapters - AliExpress](https://ae01.alicdn.com/kf/Sc31f4bbcea0c4ad8a2a98819452d80a7L/PCI-Express-4-0-x16-x8-x4-Adapter-Increased-Height-Card-Gen4-PCI-E-Slot-Riser.jpg)
Pci Express 4.0 X16 X8 X4 Adapter Increased Height Card Gen4 Pci-e Slot Riser Extender Graphics Card Gpu Protection Io Test Card - Pc Hardware Cables & Adapters - AliExpress
![RX6600 and 6600XT are limited to 8 PCIe lanes not 16. Should specs description show this? Fixed — Micro Center RX6600 and 6600XT are limited to 8 PCIe lanes not 16. Should specs description show this? Fixed — Micro Center](https://us.v-cdn.net/6031942/uploads/2SIL2EZR349P/image.png)
RX6600 and 6600XT are limited to 8 PCIe lanes not 16. Should specs description show this? Fixed — Micro Center
![Which GPU gets bottlenecked by PCI-E 3.0 x8 vs x16 ? Is any of them even bottlenecked ? : r/buildapc Which GPU gets bottlenecked by PCI-E 3.0 x8 vs x16 ? Is any of them even bottlenecked ? : r/buildapc](https://external-preview.redd.it/cEsOXUQ43u_oNa8PAk7Sm7RDfFb2ei_YthCulMUk96A.png?auto=webp&s=6799e2c0527aa8af2b20e14ddd3ff163a3829b7b)
Which GPU gets bottlenecked by PCI-E 3.0 x8 vs x16 ? Is any of them even bottlenecked ? : r/buildapc
![PCIEX16E-844S | PCIe x16 edge connector to one PCIe x8 and two PCIe x4 Slots riser cable | x16 to x8 and x4 PCIe bifurcation riser cable | PCIEX16E-844S PCIEX16E-844S | PCIe x16 edge connector to one PCIe x8 and two PCIe x4 Slots riser cable | x16 to x8 and x4 PCIe bifurcation riser cable | PCIEX16E-844S](https://www.ioi.com.tw/images/products/cat_102/l_1020250_01.jpg)