Alphacool OTC Flat 8800 Water Block
You can see from the graph below that there is quite a considerable pressure drop for the EK FC8800 GTS water block, but yet, the Alphacool OTC Flat causes the least amount of loss. Subsequently, the Alphacool OTC Flat takes first place.
The Alphacool OTC Flat proved to be the most restrictive block of the two tested, with the EK FC8800GTS facilitating considerably more flow than the Alphacool. It will be interesting to see how much of an effect the reduced flow has on the actual cooling performance of the water block. The graphs at the bottom of the page best reflect this.
You can see from the graph below that the Alphacool OTC Flat suffers a little when compared to the EK FC8800GTS. The Alphacool OTC Flat provided consistently higher temperatures at idle, load and also when overclocked even when you account for the slightly elevated ambient temperature. The OTC Flat also didn't allow us to see the full potential of the 8800GTS graphics card, by falling slightly short and allowing a 650 Core/1009 Memory overclock.
Ambient Temperature - 26.2 Deg C
|33.2 Deg C||34.1 Deg C||35.3 Deg C|
|31.4 Deg C||32.3 Deg C||33.5 Deg C|
Subsequently, the Alphacool OTC Flat gets beaten by the EK FC8800GTS water block in todays performance review. However, in the Alphacool's defence it is an extremely good looking water block and if you weren't looking for the best performance and had a decent pump to counter the restriction, then it would certainly be a suitable addition.
Let's head over the page to see a summary of the Alphacool OTC Flat's performance today...