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by adrian_b
1985 days ago
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The so-called 5 Gb/s PCIe 2.0 lanes are in fact 4 Gb/s lanes. Ethernet speeds are given in data bits per second, while USB 3.0, PCIe 1.0 and PCIe 2.0 add in their speed values the extra bits used for encoding. On the other hand, 10 Gb/s USB and 8 Gb/s PCIe 3.0 have really those speeds. Complicated :-( One PCIe 2.0 lane is more than enough for 2.5 Gb/s Ethernet, but not enough for 5 Gb/s Ethernet or 10 Gb/s Ethernet. |
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