Any 5700 series reviews on Ryzen 3000 platforms with PCIe 4

[JustMe21]

I was wondering if there are any 5700 series reviews that are run on Ryzen 3000 PCIe 4 systems and if there was any perfromance improvements over PCIe 3? I ask because of this line from the rdna whitepaper.

The RDNA architecture is the first family of GPUs to use PCIe® 4.0 to connect with the host processor.

https://www.amd.com/system/files/documents/rdna-whitepaper.pdf

 

[UsandThem]

I was wondering if there are any 5700 series reviews that are run on Ryzen 3000 PCIe 4 systems and if there was any perfromance improvements over PCIe 3?

Nope.

Even much more powerful GPUs like the RTX 2080 don't even saturate the PCIe 3.0 X16 bandwidth.

 

[EXCellR8]

PCIe 4.0 is only a benefit for high performance storage devices at the moment. Might be some time before we see any benefit for dedicated GPU

Any marketing for current GPU's is basically just stating native support for the slot/standard.

 

[serpretetsky]

https://www.techpowerup.com/review/pci-express-4-0-performance-scaling-radeon-rx-5700-xt/

Some tiny measurable differences in some games between PCIE2 and PCIE3. PCIE4 didn't see any difference

 

[EXCellR8]

Looking at the results, we can see a whole lot of nothing.

Nice.

 

[IntelUser2000]

I mean, why would it show a difference? dGPUs have a pool of fast memory with very high bandwidth.

And most such cards have enough VRAM to fit everything in it. If VRAM is hindering your performance, you'd go upgrade that first.

Anything that the GPU sends to the CPU is probably latency sensitive and likely not at all high bandwidth.