[eso_logic]

16 GPUs would require one or more 220V breaker panels, more akin to an EV charger than a computer. You would also quickly run out of PCIe lanes. My goal with this benchmarking is to think about what is the most cost effective way to fill 4U.

[dylan604]

Specifically, 16GPUs is extreme, but for what the GPUs are being used for, do they need all of the PCIe lanes since they are not pushing pixel data? I ask as someone I know was into extreme mods. He built a rig that he'd plug into his dryer's 220v outlet to run. He also had PCIe break out cables to plug in multiple GPUs per PCIe slot on the mobo. Since the GPUs were only doing math for 3D rendering, he did not worry about the PCIe lanes. This was a really long time ago and I do not remember the actual speeds, but faster than CPU only renders.