Nikon D3100 vs Canon EOS Rebel T2i, EOS 550D or Kiss X4 vs Pentax K-x

COMPARISON SELECTION (3 selected items max.)
Nikon D3100

DXOMARK Sensor Scores

Overall Score [?]
67
Portrait (Color Depth) [?]
22.5 bits
Landscape (Dynamic Range) [?]
11.3 Evs
Sports (Low-Light ISO) [?]
919 ISO
dxomark
Canon EOS 550D

DXOMARK Sensor Scores

Overall Score [?]
66
Portrait (Color Depth) [?]
22.1 bits
Landscape (Dynamic Range) [?]
11.5 Evs
Sports (Low-Light ISO) [?]
784 ISO
dxomark
Pentax Kx

DXOMARK Sensor Scores

Overall Score [?]
72
Portrait (Color Depth) [?]
22.8 bits
Landscape (Dynamic Range) [?]
12.5 Evs
Sports (Low-Light ISO) [?]
811 ISO
dxomark