| Wolfson Audio Card | Cirrus Logic Audio Card | |
| Compatible | ||
| Raspberry Pi Model A and B | Yes | No |
| Raspberry Pi Model A+ and B+ | No | Yes |
| Technical Features | ||
| 26pin GPIO Connector | Yes | No |
| 40pin GPIO Connector | No | Yes |
| Back powering Raspberry Pi | No | Yes |
| Render HD Audio, 24-bit 192kHz | Yes | Yes |
| Low profile 3.5mm connectors | No | Yes |
| 3.5mm 4-pole jack (Headphones or Headset) | Yes | Yes |
| 3.5mm Stereo line input | Yes | Yes |
| Support for external Stereo microphones on line input | No | Yes |
| 3.5mm Stereo line output | Yes | Yes |
| Onboard Stereo MEMS Microphones | Yes | Yes |
| S/PDIF Input and Output | Yes | Yes |
| Onboard Stereo Class D 2.5W (4ohm) Speaker Amplifiers | Yes | Yes |
| Expansion Header | 16 Pin | 20 Pin |
| Available Pi GPIO | 3 (inc UART) | 8 (inc UART) |
| UART Header for Pi | Yes | Yes |
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