Second GPU to improve rendering preview speed?

[ThomasMiller]

Man, I should really switch to GPU Micha , Muhammed_Hamed , a bit off-topic question for all of you more experienced in rendering with GPUs... How does a consumer-grade chipset like mine (X470) handle multiple GPUs if there is not enough PCIe lanes for all of them to run at 16x? Does sharing lanes affect render speeds at all? Also what kind of equipment, adapter, or riser would you need to put more than 3 GPUs in one machine?

[Micha]

Sorry, I don't know.

[Muhammed_Hamed]

ThomasMiller I didn't see your question sorry about the delay
On X470 you can run 2 GPUs without issues.. they will run at x8 and x8 which is enough even if you use NVlink
With 3 GPUs, you start getting into bandwidth issues.. but it is still possible (without NVlink)

[stephanbobby]

@Micha: Thanks a lot for the advice!