Performance

My system configuration is as follows:
I tested the cooling ability of the Danger Den waterblock at a variety of graphics card clock settings and compared these to the stock cooler. I used the game Jade Empire Special Edition to benchmark the performance of the waterblock.

Jade Empire is a beautifully designed game that allowed me to turn up all the features of the HD2900XT while still allowing exceptional frame rates. All benchmarks, (except 2D desktop modes in which no game was used) were ran at 1920x1200 resolution with 16x Anti Aliasing + Temporal Antialiasing, 16x Anisotropic Filtering, quality adaptive Anti Aliasing, and all in-game settings to maximum.

In each benchmark the card was left running at its stated speed (in-game or out) for 1 hour and temperatures, minimum, maximum and average for the GPU and PCB were made using AMD GPU Clock Tool.

The game benchmarks were ran at three different clock speeds to represent the 512MB HD 2900 XT core speed, the default 1 GB 2900 XT core and memory speed, and a slightly overclocked 1 GB 2900 XT core and memory speed. It must also be noted that overclocking was limited to default stock voltages as there is yet any program to alter the 1 GB 2900XT's voltages.

Here are the results from the benchmarking using Jade Empire:



Using the Danger Den DD-29XT waterblock results in dramatically reduced load temperatures. This holds true even when the core and RAM on the 2900XT graphics card are overclocked. When one compares the temperature profile of the overclocked 2900XT with that of the same card using the stock cooler the difference is rather significant. With the core overclocked to 850MHz and its RAM to 2300MHz, the peak temperature recorded by AMD GPU Clock Tool remained lower, under load, than the minimum Idle temperature of the 2900XT equipped with the stock OEM cooler. This is awesome!
The temperatures are kept extremely low for this beast of a card.

The GPU temperature dropped by approximately 34°C under normal operating conditions in 3D mode (825 MHz core / 2100 MHz memory). This is very good for a waterblock, especially on a card renowned for being a hot piece of hardware.
Below is a tabulated breakdown of the temperatures recorded by AMD GPU Clock Tool: