Overkill at 950GP/H, Danner Mag 9.5?
 

So... higher flow rate = better preformance, as a general rule?

I've heard a lot about Danner's adding the most heat to the water, more-so than any other pump. And the reviews I read only tested the Mag 3, the 9.5 is a pretty big step up from that.
It also uses a different housing than the Mag 3 - 7, so I'm guessing some of the leaking issues wouldn't be as bad.. or they could be worse.

Using a Black Ice Xtreme 2 radiator (rated at 6270 BTU/H) and 2 105 CFM 120mm's. Would the benefit of having a high flowrate pump be outweighed by the heat it might add?

RES > PUMP > CPU > GPU > RAD > RES

pricing.. for anyone curious

$30 > $64 > $56 > $52 > $104 > $30

Radiator performance is best at a certain flow rate, no more, no less. With the waterblock, performance increases with more flow, but not by a lot. Thus, with that pump, the water will be travelling through the radiator too rapidly, and radiator performance will go down, AND you'll have more heat in the system.

Bah replied to wrong post.

No, not really.
http://www.overclockers.com/articles481

Example:
http://clientes.netvisao.pt/carlo001...ion curves.gif

Pump heat, however, needs to be accounted for.
But the Mag 3 doesnt put out that much heat.
The rest depends on the waterblock(s) that you put on the system, and their added restriction.

The biggest problem is just... OVERKILL there is a certain amount which is optimal for heat transfer, if you go over it might go .005C hotter, but it won't decrease performance as far as we would notice.

You'll hit a point (probably around the Mag3) where any additional cooling from flow rate increases will be more than offset by the increased heat of the pump. Let me say that plainly: CPU temperatures will rise due to the input of pump heat to the system.

I'd still like a high flowrate pump... maybe the Mag 5? Would 500GP/H still be too much for a White Water, Z Chip Block, Single Bayres, Maze 4, and the 27cm radiator?

TerraMex: Look at that graph closely. The lines goes slowly downwards after the point of best performance, and that graph doesn't cover the extreme flow rate he'd be getting. Mag 5 has less flow at the 6 or 8 foot level than the Mag 3, and a lot more heat put out on top of that.

If you're going with a Mag pump, then the Mag 3 is the better choice. Ignore the peak flow rating - it's basically meaningless if it's above 150GPH as very few systems will ever see that much flow due to their restrictiveness.

What you want is good pumping pressure at flow rates you want to see, and the Mag3 and the Mag5 will deliver near identical pressures at the sorts of flow rates you will get, but the Mag3 consumes less power and dumps less heat into your system, meaning your CPU will be cooler.

Excellent advice Cathar.