Different minor steppings of the same basic chipset
3Com PCMCIA Ethernet Adapter Issues
3CXFE575BT 3CXFE575CT diffrences
Date: 2000, Mar 07
From: David Hinds <email@example.com>
There should be no performance difference. I think the biggest change
is that the new ASIC has better support for PCI bus power management,
and ACPI support. Linux doesn't have much support for these things.
to: "Different minor steppings of the same basic chipset"