| Item | LSTF | Reference PWR |
| Primary pressure (MPa) | 16 | 16 |
| Primary fluid temperature (K) | 598 | 598 |
| Core height (m) | 3.66 | 3.66 |
| Number of fuel rods | 1008 | 50,952 |
| Primary fluid volume (m3) | 8.14 | 347 |
| Total core power (MW) | 10 | 3423 (thermal) |
| Core inlet flow (ton/s) | 0.0488 | 16.7 |
| Number of primary loops | 2 | 4 |
| Hot leg inner diameter D (m) | 0.207 | 0.737 |
| Hot leg length L (m) | 3.69 | 6.99 |
| Hot leg L/D1/2 (m1/2) | 8.11 | 8.14 |
| Number of SG U-tubes | 141 | 3382 |
| Average length of SG U-tubes (m) | 20.2 | 20.2 |