![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
![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/TPU-PCIE-SCALING-2023.png)
GeForce RTX 4090 and Core i9-13900K PCIe scaling test shows 2% difference between x16 and x8 modes - VideoCardz.com
![Amazon.com: RIITOP Dual NVMe PCIe Adapter, M.2 NVMe SSD to PCI-e 3.1 x8/x16 Card Support M.2 (M Key) NVMe SSD 22110/2280/2260/2242/2230 : Electronics Amazon.com: RIITOP Dual NVMe PCIe Adapter, M.2 NVMe SSD to PCI-e 3.1 x8/x16 Card Support M.2 (M Key) NVMe SSD 22110/2280/2260/2242/2230 : Electronics](https://m.media-amazon.com/images/I/71v0Hn1SLBL.jpg)
Amazon.com: RIITOP Dual NVMe PCIe Adapter, M.2 NVMe SSD to PCI-e 3.1 x8/x16 Card Support M.2 (M Key) NVMe SSD 22110/2280/2260/2242/2230 : Electronics
![PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB](https://www.igorslab.de/wp-content/uploads/2020/07/16x.jpg)
PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB
![PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB](https://www.igorslab.de/wp-content/uploads/2020/07/Motherboard-CPU-1024x453.jpg)
PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor´sLAB
![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)