jngzsz posted at 2:17 AM Wed, 12 July 2023 - #4469871

One thing that occurs to me is:

Motherboard + Intel 9900K + 2 Nvidia 3080TI offers more performance than an I9 13900KF + 1 Nvidia 4090?

I mean in render tasks only. The theme of video games is not my priority

Hi there

RTX 4090 will be faster there than dual RTX 3080Ti when comes to rendering,I have tested dual RTX3090 vs single RTX4090 and RTX4090 will win hands down,where dual RTX3090 will and is advantageous is in pooling memory(for dual RTX3090 you will have 48GB of VRAM) but for that you will need to have NvLink and renderer must support it

Plus main reason why I would go with single GPU over dual GPUs setups are electricity bills here in UK or in EU,dual RTX3090 in normal system will pull easily 900W just for GPUs and newer RTX4xxx are much more efficient 

And as @shrdavid said,dual GPU won't be as twice as fast,they don't scale as power,trust me I have run all the time dual or triple GPUs setups and they don't scale as you think

Hope this helps

Thanks,Jura