Nikon D90 vs Nikon D3x

This is a full comparison between the cameras Nikon D90 and Nikon D3x. We compare them by looking at the categories you see below.

Nikon D90

Nikon D3x

Manufacturing

These cameras are both manufactured by Nikon.

These two camera models were both released 2008.

Camera	Released
Nikon D90	2008
Nikon D3x	2008

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon D90 has a "Nikon DX"-sensor while Nikon D3x has a "Nikon FX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera	Focal length, 50mm f/1.8 **
Nikon D90	75 mm Nikon DX sensor Crop factor/focal length multiplier by * 1.5
Nikon D3x	50 mm Full-frame sensor No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Nikon)

Resolution

Nikon D90 has a 12,3 MP (Megapixels) resolution while Nikon D3x has 24,5 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Nikon D90	12,3 MP 12212224 pixels 4288 x 2848
Nikon D3x	24,5 MP 24385536 pixels 6048 x 4032

Nikon D3x has a 100 % larger resolution than Nikon D90. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon D3x has a larger ISO-range than Nikon D90. Nikon D3x has an ISO range that stretches from 100 to 6400 while Nikon D90 has 200 to 6400.

Camera	ISO Range
Nikon D90	200-6400
Nikon D3x	100-6400

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Nikon D90
Lens compatibility chart for Nikon D3x

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D90 can shoot up to 4,5 pictures per seconds and Nikon D3x can shoot up to 5 pictures per seconds.

Camera	FPS (Frames per second)
Nikon D90	4,5
Nikon D3x	5

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

When comparing these two cameras there is only one of them that can shoot movies and that is Nikon D90. Unfortunately Nikon D3x does not support recording movies and movie clips.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Nikon D3x weighs 1260 gr (equal to 2.78 lb) which is 79% heavier than Nikon D90 and its 703 gr (or 1.55 lb).

Camera	Weight
Nikon D90	703 gr 1.55 lb
Nikon D3x	1260 gr 2.78 lb