11-30-2020 02:48 PM - last edited on 03-05-2024 07:29 PM by ROGBot
11-30-2020 04:03 PM
11-30-2020 04:15 PM
11-30-2020 09:32 PM
12-01-2020 03:01 AM
RedSector73 wrote:
3080 is GEN4 PCIe doubt you could find performance hit x16 to x8. I can't find any video saying there is from benchmarking, I believe this will be non issue if you move to CH8 but I have no way to confirm this for you either, just my gut feeling.
So here is why I think it wont matter.
PCIe GEN3 x16 15.754 GB/s and x8 7.877 GB/s
PCIe Gen4 x16 31.508 GB/s and x8 15.754 GB/s
Source: https://en.wikipedia.org/wiki/PCI_Express
x8 provides GEN4 PCIe provides what full x16 PCIe GEN3 can deliver.
All video I can find suggest PCIe GEN3/4 has a 0 to 5% performacne gains and nothing about x16 to x8 GEN4 as a possible loss.
12-01-2020 12:08 AM
12-01-2020 04:32 AM
12-01-2020 06:39 AM
RedSector73 wrote:
This is test of bandwidth 2080 ti
https://www.gamersnexus.net/guides/3366-nvlink-benchmark-rtx-2080-ti-pcie-bandwidth-x16-vs-x8
and this is for 3080
https://www.kitguru.net/components/graphic-cards/dominic-moass/nvidia-rtx-3080-pcie-4-0-vs-3-0-scali...
I was kinda surprised you have found differences on your x470 motherboard and respectfully wondering if maybe config issue might be the cuase. If run userbench, and post link to the url of the results. https://www.userbenchmark.com/ and HWinfo screenshot the summary page for me and post it. https://www.hwinfo.com/download/ more than happy to have a look and see if something is up.