Water temp vs Waterblock?

[Zx2Slow]

If you had a 2x120mm (or 3x120) rad in a loop cooling only the CPU; would it keep the water temp close to ambient? Then the proformance of the system would depend on how much heat the waterblock could pull from the CPU's core, right?

Are the purpose built for PC radiators capable of keeping water temps close to the ambient tempature?

The question im getting at is :
The purpose of the system is to remove the heat from the core, so whats more important in a loop; the ability to move heat from h2o to the air or move heat from the core to h2o?

[SiGfever]

If you had a 2x120mm (or 3x120) rad in a loop cooling only the CPU; would it keep the water temp close to ambient? Then the proformance of the system would depend on how much heat the waterblock could pull from the CPU's core, right?

Are the purpose built for PC radiators capable of keeping water temps close to the ambient tempature?

The question im getting at is :
The purpose of the system is to remove the heat from the core, so whats more important in a loop; the ability to move heat from h2o to the air or move heat from the core to h2o?
Both, you need to cool the core and then reject the heat from the loop so you can continue to cool the core. The waterblock and rad work as a team to process the core heat from the system and then dump it into the ambient air.

[Captain Helghas]

The block is more important than the rad. The rad will remove heat more efficiently with good blocks. A good rad will remove heat less efficiently with poor blocks. The blocks should always be your priority.