Compared to...

Studio scene comparison (higher sensitivities)

The D40X does well to maintain detail levels at higher sensitivities despite increased noise reduction, perhaps not quite as good as the Canon EOS 400D but better than the Olympus E-410. What's also interesting here is how well the six megapixel D40 compares (at these higher sensitivities can you see more detail in the ten megapixel image crops than the six megapixel?).

ISO 800

Nikon D40X	Canon EOS 400D
Olympus E-410	Nikon D40

ISO 1600

Nikon D40X	Canon EOS 400D
Olympus E-410	Nikon D40