F5F Stay Refreshed Hardware Desktop Improved resolution from 5800x3d to 7800x3d, but performance noticeably decreased.

Improved resolution from 5800x3d to 7800x3d, but performance noticeably decreased.

Improved resolution from 5800x3d to 7800x3d, but performance noticeably decreased.

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aquaforce2
Member
123
01-22-2023, 06:59 AM
#1
I recently upgraded my computer from 5800x3d to 7800x3d, but noticed no real gains—games actually ran about 20-30% slower. It seems my 7900xt might be too large for the main PCI slot due to limited space behind it. I moved it to one of the other slots: the second one is designed for PCI4x16 with X16 mode, and the third is for PCI4x16 in single mode. I’m pretty sure this is the issue, and I’m not utilizing my GPU’s full potential. Could anyone help me out? Thanks a lot!
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aquaforce2
01-22-2023, 06:59 AM #1

I recently upgraded my computer from 5800x3d to 7800x3d, but noticed no real gains—games actually ran about 20-30% slower. It seems my 7900xt might be too large for the main PCI slot due to limited space behind it. I moved it to one of the other slots: the second one is designed for PCI4x16 with X16 mode, and the third is for PCI4x16 in single mode. I’m pretty sure this is the issue, and I’m not utilizing my GPU’s full potential. Could anyone help me out? Thanks a lot!

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AlongCameBen
Member
68
01-22-2023, 10:42 AM
#2
Have you restored Windows? For a 7900X, the CPU upgrade shouldn’t be easily noticeable since a 5800X3D remains a high-end processor.
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AlongCameBen
01-22-2023, 10:42 AM #2

Have you restored Windows? For a 7900X, the CPU upgrade shouldn’t be easily noticeable since a 5800X3D remains a high-end processor.

K
KittyKat1378
Member
64
01-23-2023, 03:25 PM
#3
Second position may remain an X16 configuration, utilizing a chiplet approach instead of a direct connection to the CPU, constrained by shared bandwidth. Check 3DMark for performance trends.
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KittyKat1378
01-23-2023, 03:25 PM #3

Second position may remain an X16 configuration, utilizing a chiplet approach instead of a direct connection to the CPU, constrained by shared bandwidth. Check 3DMark for performance trends.

T
TheTwinTowers
Member
54
01-23-2023, 09:35 PM
#4
I understand this won’t significantly boost your performance, but I shouldn’t expect a major improvement either. I’m not reinstalling Windows right now, and I’m not sure if that’s the best approach. Thanks again.
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TheTwinTowers
01-23-2023, 09:35 PM #4

I understand this won’t significantly boost your performance, but I shouldn’t expect a major improvement either. I’m not reinstalling Windows right now, and I’m not sure if that’s the best approach. Thanks again.

S
SuperSilasFTW
Member
131
01-24-2023, 03:57 AM
#5
I assume you're wondering about the compatibility of a 7900X with PCIe 4x1. Which motherboard are you considering?
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SuperSilasFTW
01-24-2023, 03:57 AM #5

I assume you're wondering about the compatibility of a 7900X with PCIe 4x1. Which motherboard are you considering?

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ZoroMusic
Member
54
01-24-2023, 05:39 AM
#6
Asus Prime B650M-A CSM model
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ZoroMusic
01-24-2023, 05:39 AM #6

Asus Prime B650M-A CSM model

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Disterben
Junior Member
9
01-28-2023, 07:36 PM
#7
It seems your GPU isn't compatible with the slot you're using. You might need to move it to a slot that supports 1x or upgrade your case. Also, consider reinstalling Windows for better performance.
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Disterben
01-28-2023, 07:36 PM #7

It seems your GPU isn't compatible with the slot you're using. You might need to move it to a slot that supports 1x or upgrade your case. Also, consider reinstalling Windows for better performance.

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zScossa99z
Member
71
02-01-2023, 10:58 AM
#8
It's a great situation when I had an ITX model in the case, but not here on this M-ATX board. Maybe I could get a riser and do something with it. (But a fresh case and reinstalling the windows would be the better choice) Still, I'm determined to try and make it work.
Z
zScossa99z
02-01-2023, 10:58 AM #8

It's a great situation when I had an ITX model in the case, but not here on this M-ATX board. Maybe I could get a riser and do something with it. (But a fresh case and reinstalling the windows would be the better choice) Still, I'm determined to try and make it work.

J
Jumx41
Member
167
02-04-2023, 06:03 AM
#9
The GPU fits in the lower slot because its design matches that orientation, even though both slots are rectangular.
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Jumx41
02-04-2023, 06:03 AM #9

The GPU fits in the lower slot because its design matches that orientation, even though both slots are rectangular.

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MegaDisco
Senior Member
352
02-09-2023, 01:08 AM
#10
Hardware Unboxed conducted an extensive evaluation of several B650 boards, and all Asus Prime B650 models received a negative rating, described as "they all suck and should be avoided." Just a note: pairing a top-tier CPU and GPU with the cheapest motherboard is usually not a good match. It's similar to fitting a Ferrari engine in a Nissan Micra.
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MegaDisco
02-09-2023, 01:08 AM #10

Hardware Unboxed conducted an extensive evaluation of several B650 boards, and all Asus Prime B650 models received a negative rating, described as "they all suck and should be avoided." Just a note: pairing a top-tier CPU and GPU with the cheapest motherboard is usually not a good match. It's similar to fitting a Ferrari engine in a Nissan Micra.

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