alt Hacker News3c509 was 10base-T ISA, so it's the slowest. 3c595 and 3c905 are 10/100 PCI cards, but the 905 was newer and more efficient (better bus mastering, more CPU offload)
3c509 was 10base-T ISA, so it's the slowest. 3c595 and 3c905 are 10/100 PCI cards, but the 905 was newer and more efficient (better bus mastering, more CPU offload)