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2x GPUs Speeds on x570 Chipset?

Mackerel Ice Cream
By Mackerel Ice Cream
in Graphics Cards
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Go to solution Solved by Mira Yurizaki,

The second PCIe x16 slot only has 4 lanes available. The first x16 slot has all 16 lanes. For the best performance, the main video card must go to the first x16 slot.

 

PCIe version doesn't matter anyway, both cards are PCIe 3.0 and that's how fast each lane will talk.

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I have added a second GPU for auxiliary monitors, but I can't figure out the speed of the PCIe slots. I would prefer to install my main GPU in the second PCIe slot for better air flow and the auxiliary GPU in the first PCIe slot. Can I get PCIe 5.0 speeds on both PCIe slots with two GPU?

 

MB: Tuf gaming x570 plus

GPU: 2080 super

GPU: 970

 

Tuf x570 plus manual

tuf x570 specs

                                     "Linux is only free if your time has no value." ~Jamie Zawinski

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"HTPC" CPU 3900x // Heatsink D15 // GPU GTX 980 // MB Tuf x570 Plus // RAM Corsair Vengeance 16GB 3600 // PSU Corsair RMx 850 // OS Kingston NV1 500GB NVMe // Monitor 4k // VR OG HTC Vive // Fedora plus i3wm / Windows 10

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The second PCIe x16 slot only has 4 lanes available. The first x16 slot has all 16 lanes. For the best performance, the main video card must go to the first x16 slot.

 

PCIe version doesn't matter anyway, both cards are PCIe 3.0 and that's how fast each lane will talk.

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28 minutes ago, Mira Yurizaki said:

The second PCIe x16 slot only has 4 lanes available. The first x16 slot has all 16 lanes. For the best performance, the main video card must go to the first x16 slot.

 

PCIe version doesn't matter anyway, both cards are PCIe 3.0 and that's how fast each lane will talk.

Ahh, thank you for clarifying that. I wasn't sure what it meant in the specs. Much appreciated. This link explains it better.

                                     "Linux is only free if your time has no value." ~Jamie Zawinski

"Peaches" CPU 10900k // Heatsink Liquid Freezer II 280 // GPU EVGA 2080 Super XC // MB z490 Vision D // RAM Corsair Vengeance 80GB 3600 // PSU Corsair RMx 850 // OS 2x Intel 660p 2TB NVMe // Monitor Half 8k // VR Vive Index // Mouse Naga 2020 // Keyboard Ducky Shine 7 // Fedora plus i3wm

"HTPC" CPU 3900x // Heatsink D15 // GPU GTX 980 // MB Tuf x570 Plus // RAM Corsair Vengeance 16GB 3600 // PSU Corsair RMx 850 // OS Kingston NV1 500GB NVMe // Monitor 4k // VR OG HTC Vive // Fedora plus i3wm / Windows 10

"Dell Powerbottom N690 1U Blade, Totally Not a Shitty Desktop" CPU 2700k // Heatsink Stock // GPU EVGA GTX 970 // MB Yes // RAM Vengeance 16GB DDR3 // Monitor xrdp // VR Google Cardboard // OS Kingston 480GB // Not Porn 4TB Spinner // Fedora
"SalmonLeaves" RPi4 Model B 4GB DNS/NAS // RPi 2 Model B 1GB

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