Alphacool OTC Flat 8800 Water Block
Testing
Published: 2nd December 2007 | Source: Alphacool | Price: £54.99 |
Testing
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
Water Temperature
| Idle | Load | Overclocked |
| 33.2 Deg C | 34.1 Deg C | 35.3 Deg C |

| Idle | Load | Overclocked |
| 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...
Most Recent Comments

Nice job Mr Pvs.

Kinda disappointing about the conclusion, but that doesn't bother me as I bought the EK


Good review Peeves

Results were pretty much what one would expect from the offset
Looks like this has taken us up to 3000 live articles

Yes the OTC Flat certainly looks the goods, and it is a valiant step away from the traditional. But yes, it's poor flow performance certainly makes it hard to recommend over better performing blocks. As far as temp's go it performed quite admirably.
i'm happy with my ek but if i was going for something different and wanted a sexy thin look i'd deffinately pick this, i bet it looks awesome mounted in sli
although i imagine temps would suffer due the extreme loss of flow through 2 blocks?perhaps there could be a review of this on 2 cards to see if there is any major temperature difference between the cards when used in sli?

http://www.overclock3d.net/gfx/artic...005840448s.jpg
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