PCIe 4.0 vs. PCIe 3.0 GPU Benchmark

[Viper0402]

https://www.techspot.com/review/2104-pcie4-vs-pcie3-gpu-performance/
My Sapphire Nitro+ RX 6700 XT 12GB DDR6 of PCIe 4.0 x16 is on the Asus ROG STRIX Z390-F GAMING mainboard PCIe 3.0 x16

Let's share how does this affect your gaming performance if you're in a similar situation.

 

[watzup_ken]

I actually don’t believe there will be any impact when it comes to a RX 6700 XT, whether you are using it on a PCI-E 3.0 or 4.0 slot. Most current games do not require anything more than 8GB of VRAM and the RX 6700 XT has 12GB. So with minimal to no need to hit the system memory, the PCI-E 3.0 x16 is more than enough to maintain peak performance. In the review that you shared, the GPU itself is a problem because its got super low memory bandwidth, 4GB of VRAM which is low by today’s standard, and further gimped by a narrow x4 PCI-E BUS. Under normal circumstances, if you use the RX 6500 XT on a PCI-E 4.0 slot, that x4 won’t be a that big a problem. However, when you are stuck with PCI-E 3.0, that bus will be very limiting.

 

[Entry Level PC]

Problem is x4
x8 or x16 all good no matter PCIe 3 or 4 atm it seems.

 

[KYZT2021]

To spend more money but minor difference at the high end

 

[86technie]

Very minimal difference I am using the same motherboard as you but
I am not using a PCIE4.0 graphic card.