The numbers are for popular compilers. The actual sizes will vary according to the compiler and optimization used. Ethernet code sizes and RAM usage will vary depending upon the ethernet controller used, onboard or external.

ARM7/9 Processors
CMX-MicroNet v3.12f
THUMB Mode

Code Sizes (bytes)
UDP/IP (no TCP) + core	4998
TCP/IP (no UDP) + core	7616
UDP/TCP/IP + core	8492
(Please note that UDP/IP and TCP/IP are usually mutually exclusive)
IP Fragmentation	1970
TCP Delayed ACKs	962
PPP	6128
Modem	478
HTTP server	3830
Virtual File System	596
Ethernet	3252
DHCP client	1994
BOOTP	674
FTP Server	3588
FTP Client	3012
TFTP Client	620
SMTP	2438
SNTP	1444
POP3	3414
TELNET server	1702
DNS	708
IGMP	1092
Utility	1134
SNMP v1 + v2 with default MIBs	2862
SNMP v1 + v2 trap	892

RAM Sizes (bytes)
UDP/SLIP	198
HTTP	153
Ethernet	Depends upon driver
TCP Delayed ACKs	Number of resend buffers * (40 + transmit buffer size)

Without IP Fragmentation: add user selected buffer sizes + 80 bytes per socket

With IP Fragmentation: add user selected buffer sizes + 40 bytes + 100 bytes per socket + size of reassembly buffer(s)

CMX-MicroNet Ethernet UDP throughput is 45 - 60 MBits/second depending upon processor, tool chain, optimization level, crystal speed, and CPU mode.