One thing that I noticed as soon as I installed the Accelero X1 into my PC, is that the case temp dropped significantly. The air from the X1 is blown directly across the GPU/memory modules and onto the motherboard and it is noticeably cooler than the exhaust from the stock MSI heatsink. Another area in which the X1 excelled, is that the MSI heatsink fan ran at 4000 rpm; whereas the Accelero ran my GT a heck of a lot cooler at only less rpm. That's extremely efficient, let me explain.
Because the Accelero runs off the graphics card fan header, it defaults at the fan speed Nvidia set from the factory. On the 6800GT it happens to be 53% for 2D, lower 3D and performance 3D respectively. My 6800GT has a slider built into the heatsink, which I've always had set at 4000 rpm because 2300 rpm fan speed just doesn't cut it when overclocking. Because most common work for a graphics card is either within 2D desktop work or 3D gaming environment, it's valid to concentrate on only the 2D and performance 3D areas. You can adjust the Accelero's fan speed (between 500 - 2000 rpm) by downloading RivaTuner
and adjusting the fan speed accordingly. Although I must say, the Accelero is extremely quiet at any given speed...Even with the fans running at 100%. I still felt compelled to make sure that the X1's fan was still running, it was that quiet. So the lovers of quiet PC's will love the Accelero for sure.
Let's move onto the conclusion to see what my final thoughts are on the Accelero X1, and what score it attained for the review.