is this how PCIe works?
is this how PCIe works?
I bought the RX 6600 recently and noticed it needs PCIe 4.0, but my CPU isn’t compatible. This has caused inconsistent frame rates in Doom Eternal at low settings. Would getting a CPU that supports PCIe 4.0 resolve the issue? Also, I don’t know my motherboard’s PCIe version—my Nitro N50-610 has an i5-11600K, but I’m unsure if that’s enough.
I see your concern, but I’m focusing on how PCIe functions generally for the future. Your goal is to confirm if your CPU supports PCIe 4.0 and whether that affects GPU performance in PCIe 4.0 mode. The main factors are the motherboard and CPU capabilities, not just the GPU itself.
Your CPU is compatible with PCIe 4.0, but we require additional details from tools like GPU-Z or CPU-Z to confirm motherboard support. As discussed before, it fully works backward. PCIe 3.0 won't even connect a 3090 effectively. If you're facing problems, it's likely unrelated to these specifications.
your pc slowed down after the graphics card upgrade because the new rx 6600 didn’t fully utilize its capabilities. many users report similar issues, though some with comparable builds perform better thanks to better CPU features like PCIe 4.0 support. upgrading the cpu to one with PCIe 4.0 could help, but it’s not guaranteed to fix everything instantly.
The problem I'm encountering with the RX 6600 appears to need PCIe 4.0 since it uses an X8 interface. I believed the reason was to keep it as a budget card while maintaining solid 1080p performance.
Certainly, checking GPU-Z might reveal the issue. If it's running in 3.0 mode and you switch to a board supporting 4.0, it shouldn't affect anything. Your reasoning is off track and could worsen the situation instead of helping you find a solution.
The issue is that the 6600 is only an x8 card in PCIE4. When it goes into a PCIE3 slot, it still operates at x8. So even though there should be negligible difference between PCIE3x16 and PCIE4x16, there is a larger difference between PCIE3x8 and PCIE4x8.