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▲ fmajid 12 days ago

The ConnectX 7 2x200 Gbps networking card in the DGX Spark alone is worth $700

▲KeplerBoy 12 days ago | parent [-]

To be fair the connectx-7 in the spark can't even push 2x200 Gbps since it is connected via 4 pcie lanes.

▲Ballas 12 days ago | parent | next [-]

Technically it's connected via 8 PCIe gen 5 lanes (two 4x connections), allowing ~100Gbps per port.

▲KeplerBoy 12 days ago | parent [-]

Thanks for the correction. I should have looked it up; I only remembered it being somewhat odd.

▲fmajid 11 days ago | parent | prev [-]

Yes, ConnectX-7 itself is capable of 32x PCIe5 lanes, but the lane limitations of the GB10 SoC/chipset throttle it:

https://www.nvidia.com/content/dam/en-zz/Solutions/networkin....