I am a little sad that in the review the Powercolor NON-Go! Green 5670 card wasn't compared to its Go! Green sibling. This would have been a much more valid test to compare actual temperatures and power consumptions. Not that it doesn't seem like the Go! Green 5670 power consumption savings numbers seem a bit inflated, but it still isn't a very validating test (at least of the Go! Green 5750 it seems like the power consumption numbers do seem to be about 25% lower than an actual side-by-side tested 5750 (non-Go! Green) based on a benchmark of that card).

Final comment is on the design (owning a Go! Green 5570), fanless? Sure quieter, but a 1w silent fan could probably save 2-3w on a low power card and 5-8w on a high draw card by reducing temperatures 10-15c. My 5570 benchmarks in my case at 56c using furmark and with a 1.4w 80mm held up against it drops to 35c stable (21c drop). That has gotta be worth a few watts through better electrical efficiency running 21c cooler.