Self-contained pre-filled loop with a water block, pump, tubing, and radiator in a single unit. Easy to install, no maintenance, good for most users.
Fully configurable systems with separate pump, reservoir, radiator, and water blocks. Can cool CPU, GPU, and VRMs simultaneously.
Integrates the liquid heat sink, internal pump, fan, and radiator into a single compact self-contained unit. Eliminates external pumps required in traditional water loops. Strong all-around thermal performance in a smaller footprint.
Components submerged in thermally conductive, electrically non-conductive dielectric fluid. Primarily used in data centers. Can achieve PUE as low as 1.05 vs 1.35 for air cooling.
Components sit in dielectric fluid (often mineral oil). Heat transfers to the fluid, which is pumped to an external heat exchanger. Fluid stays liquid throughout. Complex cleanup when replacing components.
Dielectric fluid engineered to boil at CPU operating temperatures. Vapor rises, condenses on a cooled coil, and drips back as liquid. Extremely efficient but very expensive. Primarily enterprise data centers.
| Method | Efficiency | Cost | Use Case |
|---|---|---|---|
| Air Cooling | Low to Moderate | Low | Most consumer systems |
| AIO Liquid | Moderate to High | Medium | Gaming / enthusiast builds |
| Custom Loop | High | High | Extreme overclocking, multi-component |
| ALHS | High | Medium-High | Compact high-performance builds |
| Immersion | Highest | Very High | Data centers only |