Dual GPU Motherboard for home VFX

[Lanky]

I’m looking for some advice with my creative setup I have at home. I do lots of GPU intense rendering (VFX pipeline) currently I have a 5090/4090 combo but it’s being used in an old setup. I’m looking at upgrading to a 9950X3D however I’m a bit stuck on mobo choice. I ideally need one that would support both cards being run at max speed. I believe I can get this from the ASUS Proart X870E but have heard it shares a M.2 channel? I’m likely to fill all my M.2 slots. I have also seen the Asrock X870E TAICHI mentioned.

Is there any good motherboards I can get that would support both cards and usage of M.2 or is the proart the best choice here.

 

[Shadowized]

Most boards are going to act the same way on X870E, with two GPUs installed both are going to run at PCIE 8X(gen5), leaving 4 lanes for the first NVME (in gen5) through the CPU, and a second NVME should be plugged into the chipset/southbridge NVME. In the case of my board its M2A_CPU(CPU) + M2D_SB(chipset). There are some exceptions to that but those will be documented in the motherboard manuals.

 

[DemonicRyzen666]

I’m looking for some advice with my creative setup I have at home. I do lots of GPU intense rendering (VFX pipeline) currently I have a 5090/4090 combo but it’s being used in an old setup. I’m looking at upgrading to a 9950X3D however I’m a bit stuck on mobo choice. I ideally need one that would support both cards being run at max speed. I believe I can get this from the ASUS Proart X870E but have heard it shares a M.2 channel? I’m likely to fill all my M.2 slots. I have also seen the Asrock X870E TAICHI mentioned.

Is there any good motherboards I can get that would support both cards and usage of M.2 or is the proart the best choice here.

My suggestion is move to Threadripper if you want you're fully fat 16x slots. TRX50 board isn't too bad, the big hit is the cpu & ram prices.
I don't think many boards even come close to supporting a full x16/16x 4.0 or lower slot configuration on X870E. Heck most don't even do 8x/8x anymore either they're usually 16x & 4x hardwired.

 

[A Computer Guy]

My suggestion is move to Threadripper if you want you're fully fat 16x slots. TRX50 board isn't too bad, the big hit is the cpu & ram.
I don't think many boards even come close to supporting a full x16/16x 4.0 or lower slot configuration on X870E. Heck most don't even do 8x/8x anymore either they're usually 16x & 4x hardwired.

Threadripper not only for full fat x16 slots for the GPU's but also for big, or fast, or big+fast storage all at the same time. With the new threadrippers coming around the corner I would hope to see more deals on ebay within the next year. Already just recently there was a 7970x CPU/TRX50 MB combo that hit a low of only $3K.