When scaled to a size that matches the Nikon D700's 12-megapixel resolution, the A900's noise performance at ISO 3200 looks quite comparable. If you plan to take advantage of the larger output sizes facilitated by the A900's high-resolution sensor, however, note the slight detail degradation on the tape measure and blotchiness on the pastels caused by flecks of color noise. Those become visible at 100 percent.
Photo credit: CNET Labs