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 v3.08b
THUMB Mode

Code Sizes (bytes)
UDP/IP (no TCP) + core	4842
TCP/IP (no UDP) + core	7314
UDP/TCP/IP + core	8086
(Please note that UDP/IP and TCP/IP are usually mutually exclusive)
IP Fragmentation	1972
PPP	5736
Modem	498
HTTP server	3513
Virtual File System	718
Ethernet	2546
DHCP client	1834
BOOTP	648
FTP Server	3082
FTP Client	2630
TFTP Client	642
SMTP	1732
SNTP	1322
POP3	3313
DNS	732
IGMP	1076
Utility	1070
SNMP v1 + v2 with default MIBs	2760
SNMP v1 + v2 trap	856

RAM Sizes (bytes)
UDP/SLIP	177
HTTP	148
Ethernet	60

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)

Ethernet throughput numbers are calculated by timing the transmission of 1000 UDP packets containing 1460 bytes of data.

Description	Speed (Mbit/second)
Keil MCB2300 board with NXP LPC2368 processor running at 72 MHz	97.3
IAR STR912-SK board with STMicroelectronics STR912 processor running at 96 MHz	38.9
Atmel AT91SAM7X-EK board with Atmel AT91SAM7X256 processor running at 48 MHz	37.7