Dual Hybrid GPU ( 3090 +2080ti) is possible

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Hello everyone and thanks for your time.

Actualy I use blender on PC with RTX 2080ti installed on an MSI x470 gaming plus equipped with multiple GPU slots (not SLI).
I am thinking to buy an RTX 3090 and I was wondering if I can also keep the 2080ti to use them at the same time. In use with the render optix, I ask myself if the performances are equal to those of the lower gpu or if it is independent from this.

thanks
Franco

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Haven’t used optix but if the render is tile based, both cards will work at the same time. Each one will work on a tile separately.

They will work similar to a mining rig.

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Well,

thank’s a lot for your answer, Armand!

Franco

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Welcome to BA :slight_smile:

You should know that your VRAM will not increase with two GPUs unless you use NVLink

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Thanks, so it could be cheaper to install the second 2080ti (considering that I already own one) in NVLINK and obtain performances comparable to a single 3090. I ask because already owning a 2080ti,
buying a second used one and upgrading the power supply cost about half of a single 3090.

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