CPU
Original & 3G: Samsung 32-bit RISC ARM 1176JZ(F)-S v1.0[6]
620 MHz underclocked to 412 MHz[7]
PowerVR MBX Lite 3D GPU[8]
3GS: Samsung S5PC100 ARM Cortex-A8[9]
833 MHz underclocked to 600 MHz
PowerVR SGX GPU[10]
Connectivity Wi-Fi (802.11b/g), Bluetooth 2.0+EDR (3GS: 2.1), USB 2.0/Dock connector
Quad band GSM 850 900 1800 1900 MHz GPRS/EDGE[14]
3G also includes: A-GPS; Tri band UMTS/HSDPA 850, 1900, 2100 MHz[15]
3GS also supports: 7.2 Mbps HSDPA