F5F Stay Refreshed Hardware Desktop The amount of performance lost from using a second slot is not specified in the provided information.

The amount of performance lost from using a second slot is not specified in the provided information.

The amount of performance lost from using a second slot is not specified in the provided information.

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Assassin_AndyZ
Member
116
04-20-2022, 10:32 AM
#1
I chose to upgrade from x299 to z790, but the new motherboard didn’t work properly, so I was curious about the impact on my 4090’s performance when switching to the second PCIe slot.
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Assassin_AndyZ
04-20-2022, 10:32 AM #1

I chose to upgrade from x299 to z790, but the new motherboard didn’t work properly, so I was curious about the impact on my 4090’s performance when switching to the second PCIe slot.

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mrm4088
Member
61
04-28-2022, 10:34 PM
#2
Run GPU-Z to view GPU details. Then examine the PCI-E specifications for speed and lanes.
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mrm4088
04-28-2022, 10:34 PM #2

Run GPU-Z to view GPU details. Then examine the PCI-E specifications for speed and lanes.

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papercut3
Member
221
05-14-2022, 04:14 PM
#3
It varies by system. For boards supporting x8/x8 with PCIe Gen 4x8, performance sits around 5% to 10%, or more if the game is demanding. Without that support, it's roughly 10% on average, but can jump to 30% or higher based on the title and settings you're using.
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papercut3
05-14-2022, 04:14 PM #3

It varies by system. For boards supporting x8/x8 with PCIe Gen 4x8, performance sits around 5% to 10%, or more if the game is demanding. Without that support, it's roughly 10% on average, but can jump to 30% or higher based on the title and settings you're using.

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docsev
Junior Member
49
05-15-2022, 01:34 PM
#4
It mentions operation at x1 PCIe 3. Is that feasible?
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docsev
05-15-2022, 01:34 PM #4

It mentions operation at x1 PCIe 3. Is that feasible?

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SinZero1337
Junior Member
16
05-15-2022, 09:34 PM
#5
I don't have that information. Could you please specify which motherboard you're referring to?
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SinZero1337
05-15-2022, 09:34 PM #5

I don't have that information. Could you please specify which motherboard you're referring to?

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Redjessica1
Member
62
05-16-2022, 05:12 AM
#6
Gigabyte Z790 Aorus Master is a high-performance motherboard designed for advanced gaming and content creation.
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Redjessica1
05-16-2022, 05:12 AM #6

Gigabyte Z790 Aorus Master is a high-performance motherboard designed for advanced gaming and content creation.

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Niwuua
Junior Member
18
06-03-2022, 05:52 AM
#7
What slot are you currently playing in?
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Niwuua
06-03-2022, 05:52 AM #7

What slot are you currently playing in?

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Lukox
Junior Member
40
06-03-2022, 04:47 PM
#8
The second position supports PCIe 3.0 x1, while the final slot connects via PCIe 3.0 x4.
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Lukox
06-03-2022, 04:47 PM #8

The second position supports PCIe 3.0 x1, while the final slot connects via PCIe 3.0 x4.

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xMlynek
Member
71
06-08-2022, 09:18 AM
#9
Is this running in the second PCIe lane from the back? That’s the sole lane on that board using x1 PCIe, and it only supports Gen 3 (just like the x4 lane). You’re missing a lot of speed by not being in the highest PCIe lane with this unit (the second-gen 3x4 lane is like running at x16 Gen 1.1). That performance loss is significant. You should aim for the lowest PCIe lane, though the top lane truly provides the GPU the bandwidth it requires. https://www.techpowerup.com/review/nvidi...ng/28.html Being in the x1 position offers hardly enough data rate to run that GPU effectively.
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xMlynek
06-08-2022, 09:18 AM #9

Is this running in the second PCIe lane from the back? That’s the sole lane on that board using x1 PCIe, and it only supports Gen 3 (just like the x4 lane). You’re missing a lot of speed by not being in the highest PCIe lane with this unit (the second-gen 3x4 lane is like running at x16 Gen 1.1). That performance loss is significant. You should aim for the lowest PCIe lane, though the top lane truly provides the GPU the bandwidth it requires. https://www.techpowerup.com/review/nvidi...ng/28.html Being in the x1 position offers hardly enough data rate to run that GPU effectively.