Hardware:
A4000
Ariadne
WarpEngine 3040
Buster 11

Software:
AmiTCP 4.3
ariadne.device 1.50
Kickstart 3.1
Workbench 3.1

Non-default settings:
Kickstart in FastRAM
exec.library in FastRAM

Amiga -> PC (TCP):
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp  -> 192.168.0.1
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 21.34 real seconds = 767.60 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 10.67, calls/sec = 95.95
ttcp-t: 0:21real

Amiga -> PC (UDP):
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001  udp  -> 192.168.0.1
ttcp-t: socket
ttcp-t: 16777216 bytes in 34.11 real seconds = 480.31 KB/sec +++
ttcp-t: 3054 I/O calls, msec/call = 11.44, calls/sec = 89.53
ttcp-t: 0:34real

PC -> Amiga (TCP):
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 192.168.0.1
ttcp-r: 16777216 bytes in 20.25 real seconds = 809.08 KB/sec +++
ttcp-r: 2301 I/O calls, msec/call = 9.01, calls/sec = 113.63
ttcp-r: 0:20real