I have an Asus Prime X570-P motherboard, and I noticed that my RTX 4060 is running on a PCIe 4.0 x8 bus instead of x16. Given that my motherboard has two PCIe slots that support x16, I'm wondering if this bandwidth limitation is normal for my GPU. Is this something NVIDIA does intentionally, or is there a problem? I'd appreciate insights from anyone experienced with this!
4 Answers
Yeah, the RTX 4060 actually only features a x8 PCIe connection. It's intended that way, so no shady business from NVIDIA.
The RTX 4060 is designed to run at x8. It doesn't actually utilize the x16 connection, so what you're seeing is completely normal.
If you check out the official specs, you'll see it lists PCIe 4.0 x8 as the bus interface. So yes, it's meant for your GPU. And honestly, x8 performance isn't a big deal; it's generally sufficient for most applications. x16 isn't always necessary, so you shouldn't worry too much about it.
Keep in mind that PCIe 4.0 x8 provides similar performance to PCIe 3.0 x16. There might be slight performance drops in some demanding scenarios, but generally, you'll find that it's not a major concern. Just remember that older PCIe 3.0 systems might feel more of a performance hit, closer to 10% in some cases. But hey, at least it's not like the AMD Radeon RX 6400, which only supports 4 lanes—now that would be a limitation!
Wow... for real? Guess x8 is still decent bandwidth, but it feels a bit limiting.