Will performance decrease on ASUS RTX 4070 TI Super PCIE 4.0 X8 Bus?

[Orodruin]

Hello everyone;

AMD Ryzen 9 7900X3D
Asus ROG Strix B650E-E Gaming
and Asus RTX TUF RTX4070TI Super,
I have a system consisting of main components.

There are a total of 4 Nvme M2 slots on my motherboard. 2 of them support PCIE 5.0, and when you insert an SSD into the second m2 slot, the GPU slot decreases from X16 to X8 (Pcie Gen 5). How much will I lose in performance as a result of decreasing this bus from X16 to X8?
I want to learn this.
My graphics card supports PCIE Gen4. The motherboard is Gen 5.
But when the bus decreases from X16 to X8, this also corresponds to the same bus width as X16 Gen3.
Most graphics cards do not use X16 Gen4 bandwidth. I know that.
I know that even Gen3 16x is more than enough.
But I would still be happy if those who know could respond.

[monopoly_hater]

54 minutes ago, Orodruin said:

Hello everyone;

AMD Ryzen 9 7900X3D
Asus ROG Strix B650E-E Gaming
and Asus RTX TUF RTX4070TI Super,
I have a system consisting of main components.

There are a total of 4 Nvme M2 slots on my motherboard. 2 of them support PCIE 5.0, and when you insert an SSD into the second m2 slot, the GPU slot decreases from X16 to X8 (Pcie Gen 5). How much will I lose in performance as a result of decreasing this bus from X16 to X8?
I want to learn this.
My graphics card supports PCIE Gen4. The motherboard is Gen 5.
But when the bus decreases from X16 to X8, this also corresponds to the same bus width as X16 Gen3.
Most graphics cards do not use X16 Gen4 bandwidth. I know that.
I know that even Gen3 16x is more than enough.
But I would still be happy if those who know could respond.

the bandwidth will be halved, gen 4x8 is the same as gen 3x16, gen5x4,gen6x2,gen7x1...... Should be fine but am not sure

[TatamiMatt]

1 hour ago, Orodruin said:

Hello everyone;

AMD Ryzen 9 7900X3D
Asus ROG Strix B650E-E Gaming
and Asus RTX TUF RTX4070TI Super,
I have a system consisting of main components.

There are a total of 4 Nvme M2 slots on my motherboard. 2 of them support PCIE 5.0, and when you insert an SSD into the second m2 slot, the GPU slot decreases from X16 to X8 (Pcie Gen 5). How much will I lose in performance as a result of decreasing this bus from X16 to X8?
I want to learn this.
My graphics card supports PCIE Gen4. The motherboard is Gen 5.
But when the bus decreases from X16 to X8, this also corresponds to the same bus width as X16 Gen3.
Most graphics cards do not use X16 Gen4 bandwidth. I know that.
I know that even Gen3 16x is more than enough.
But I would still be happy if those who know could respond.

I believe the only GPU to throttle under gen3.0x16 is a 4090 and even at that only by low single digit percentages, so you should be fine, GPUs havent yet become advanced enough to overcome the sheer amount of transfer that PCIe slots have (even with the massive leaps that have been taken in recent years, going from the 2080Ti to the 4090 in just over 5 years), and were now another generation of PCIe ahead again.

 

Do you have the option of mounting the drives in something other than the m.2_2 slot? or do you have all 4 drive slots full?

[jaslion]

Nope no performance impace a 4070ti isnt fast enough to saturate that link

[Orodruin]

2 hours ago, TatamiMatt said:

I believe the only GPU to throttle under gen3.0x16 is a 4090 and even at that only by low single digit percentages, so you should be fine, GPUs havent yet become advanced enough to overcome the sheer amount of transfer that PCIe slots have (even with the massive leaps that have been taken in recent years, going from the 2080Ti to the 4090 in just over 5 years), and were now another generation of PCIe ahead again.

 

Do you have the option of mounting the drives in something other than the m.2_2 slot? or do you have all 4 drive slots full?

All m2 nvme slots are full. Frankly, it is impossible to make another connection.

[Orodruin]

1 hour ago, jaslion said:

Nope no performance impace a 4070ti isnt fast enough to saturate that link

Then I won't suffer any losses.

[TatamiMatt]

3 minutes ago, Orodruin said:

Then I won't suffer any losses.

Nope

[Salted Spinach]

With a 4090, a PCIE 3.0 x16 connection might cause you to only get 580fps instead if 600fps in CSGO at 1080p

 

The difference is night and day on all modern monitors, and will cause you to lose in all competitive games