| Reactor | PWR | BWR | MAGNOX | AGR |
| Fuel: | 3% LEU | 2.2% LEU | Natural Uranium | 2% LE UO2 |
| Cladding | Zircalloy | Zircalloy | Magnesium alloy | St. Steel |
| Moderator | Light Water | Light Water | Graphite | Graphite |
| Coolant | Light Water | Light Water | Carbon dioxide | Carbon Dioxide |
| Outlet Temp. | 318 | 318 | 360 | 620 |
| Steam Temp. | 285 | 286 | 345HP 330LP | 540 |
| Steam Pressure | 69 | 75 | 150 | 40HP 11LP |
| Efficiency | 32% | 32% | 33% | 42% |
| Power Density | High | High | Low | Low |
| Burn-up | High | High | Low | Low |