ATmega8 vs ATmegaXX8

Device	ATmega8	ATmega8A	ATmega88	ATmega88P	ATmega168	ATmega168P	ATmega328	ATmega328P
Flash	8192	8192	8192	8192	16384	16384	32768	32768
SRAM	1024	1024	1024	1024	1024	1024	2048	2048
EEPROM	512	512	512	512	512	512	1024	1024
Max Freq (MHz)	16	16	20	20	20	20	20	20
Touch Chnls	12	12	16	16	16	16	16	16
Ext Interrupts	2	2	24	24	24	24	24	24
SPI	1	1	2	2	2	2	2	2
Temp	N	N	N	Y	N	Y	Y	Y
picoPower	N	N	N	Y	N	Y	N	Y
Vcc	2.7 to 5.5	2.7 to 5.5	1.8 to 5.5	1.8 to 5.5	1.8 to 5.5	1.8 to 5.5	1.8 to 5.5	1.8 to 5.5
In Compare	0	1	1	1	1	1	1	1
Out Comapre	0	3	6	6	6	6	6	6
PWM	3	3	6	6	6	6	6	6
Price^1	2.61	2.36	2.82	2.93	3.11	3.47	2.06	2.50

Notes:

1. Prices are typical US $ per single unit as of April, 2014.