GSM

- GSM uses multiple frequencies.

- Uses TDMA and FDMA for accessing signals.

- The voice rate is 9.6 KBPS.

- Uses less bandwidth.

CDMA

- CDMA uses single frequency as carrier.

- The voice rate is 14.4 KBPS.

- CDMA power control to access method is better as Phased Locked Loops are used.

- Follows soft handoff, hence call handling is more efficient