Originally posted by Freak Not according to DxO it doesn't:
24Mp Score - 81 (Overall) - 24.1bits (Colour Depth) - 13.4ev (Dynamic Range)
16Mp Score - 77 (Overall) - 23.6bits (Colour Depth) - 12.7ev (Dynamic Range)
Shows the 24Mp gets a better overall, colour depth and dynamic range score, and only marginally loses in ISO ability. So resolution, colour, and dynamic range are all better on the 24Mp compared to 16Mp sensors. Having said all that the differences in this case would be very hard to notice on images.
Some people here seem to think the new 24MP sensor on the D3200 will be "better" than the one on the 16MP upcoming K30. No, not entirely correct as you do have to interpret the curves provides by DXO. Here's how I interpret the DXO measurement data for the K-01 vs the D3200. I use the SNR curve as a proxy for the noise characteristics. Also, and this is very important: For my interpretation below, I use measured ISO and not marked ISO on the camera. The D3200 does suffers because the camera's sensitivity is not as accurate as that of the K-01. For example, if you dialed in ISO 800 on both cameras, the actual ISO is 703 on the K-01 and 571 on the D3200. What does this mean to you? Well, it means to achieve similar exposures with both camera, you can shoot the K-01 at slightly faster shutter speeds than that of the D3200. Or better yet, you can also, use a slightly lower ISO on the Pentax than the Nikon to achieve identical shutter speeds at the same aperture.
According to the DXOmark measurement data, the only point at which the D3200 bests the K-01 is at ISO 100. The noise is similar for both, but the DR of the D3200 is about a third of a stop better. For those of you that shoot primarily at base ISO (i.e landscapers), the D3200 should yield slightly better quality images, at least on paper. However, at higher ISO's where many general shooters tend to shoot, the D3200 advantage is lost. Also, the D3200 is not what I consider a landscape camera because of it's crippled functionality.
At ISO 200 or 400, the noise and DR of both these cameras is nearly identical.
At ISO 800, the noise is the same, but the DR of the K-01 is about 1/2 stop better, partially because of the K-01's more accurate sensitivity.
At 1600, the noise is the same, but the DR of the K-01 has slipped a bit, but is still ahead by 1/3 of a stop.
At 3200, the K-01 bests the D3200 in noise by about 1/2 stop and the dynamic range by about a 1/3 stop.
At 6400, the K-01 beats the D3200 in noise (1/2 stop) and dynamic range (3/4 stop).
I really don't see much advantage of the new 24MP sensor. In fact, I think it is a step backwards compared to the Sony 16MP. However, I think Nikon will sell a ton of them, mostly to people who just look at MPs (and price) at the expense of everything else.