To be fair the connectx-7 in the spark can't even push 2x200 Gbps since it is connected via 4 pcie lanes.
Technically it's connected via 8 PCIe gen 5 lanes (two 4x connections), allowing ~100Gbps per port.
alt Hacker News
Technically it's connected via 8 PCIe gen 5 lanes (two 4x connections), allowing ~100Gbps per port.