Friday, October 2, 2020

Question about PCIe NIC throughput

Am just wondering, why does some card has options that makes me confused with?

For example:

there's quad-port lan card with x1 interface and only has PCIe Rev.1.1

which means, the max throughput it can get is 2.5GT/s (or roughly ~250MB/s)

with that being said, quad-port lan can max up to 8Gbit/s (considering maxed out full duplex per port (2x 1Gbps)/port)) (or roughly ~1GB/s), therefore it wouid not get the full speed if all 4 of them is occupied and fully utilised.

is it just a marketing bogus, or it's more than I think it is?



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