| Features: | ETN / I | 270 | 320 |
| CPU | Marvell XScale PXA255 | Marvell XScale PXA270 | Marvell Xscale Monahans P |
| Speed: Standard | 400 MHz | 520 MHz | 806 MHz |
| Speeds: Options * | 312 MHz | ||
| SDRAM: Standard | 64 MB, 32 bit | 64 MB, 32 bit | 64 MB, 32 bit |
| SDRAM: Options * | 32 MB, 16 bit 128 MB, 32 bit | ||
| Flash: Standard | 32 MB, 32 bit | 32MB, 16 bit | 128 MB NAND, 16 bit |
| Flash: Options * | 16MB, 64MB, 16 bit | ||
| External memory | No | No | 16-bit A/A/D interface |
| Reset logic, I2C | Yes | Yes | Yes |
| JTAG | Yes | Yes | Yes |
| Serial interfaces | 3 asynch, 1 synch. | 3 asynch, 3 synch. | 3 asynch, 3 synch. |
| LCD controller | Yes | Yes | Yes |
| PC-Card / CF interface | Yes | Yes | Yes |
| I2S, AC97 interface | Yes | Yes | Yes |
| Single 3.3V power supply | Yes | Yes | Yes |
| Core voltage generation | Fixed | Programmable | Programmable |
| RedBoot firmware | Yes | Yes | Yes |
| ETN / I | 270 | 290 | |
| Ethernet | 100 Mbps | No | No |
| Silicon serial number | Yes | No | No |
| I2C RTC | No | Yes | No |
| Touch screen controller | No | No | internal |
| Audio codec | No | No | No |
| Temp range | -40 to +85 degC | -25 to +85 degC | -25 to +85 degC |
| Extended Temp option | -Standard | Standard | Standard |
| Dimensions | 67.6 x 36.6 x 7.3 mm | 67.6 x 31 x 4.2 mm | 67.6 x 26 x 4.2 mm |
| Connectors | SAMTEC and DIMM144 | SODIMM 200 | SODIMM 200 (not compatible with T-270) |
| RoHS (lead-free) | No | Yes | Yes |
| Development Kit | Dev-Kit 2 | Dev-Kit 3 | Dev-Kit 4 |