Sapphire hd 7850 only use 32 bit?

[kojakfull]

I installed a 64 bit windows 7 ultimate but when i check my display on dxdiag it says it only use 32 bit? see screenshot http://content.screencast.com/users/kreatus/folders/Snagit/media/1e5db8b8-9c16-43dd-a7bf-0efc17d59495/03.01.2013-11.20.png

How can i maximize my video card? Also can i add more memory to it?
I have 16gig RAM installed.

Thanks

 

[djangoringo]

That's the color depth/bit depth which is 32 bits, it has nothing to do with the OS being 64 bits, you can't add more memory to the gpu, the ram that you have is more than enough, you can try to overclock the gpu, if you want to(it doesn't guarantee that it will be possible) with msi afterburner, trixx, amd overdrive.

 

[mlapointe2]

That refers to 32 bit vs 16 bit etc ( color depth) of the picture the monitor is displaying at 1440 x 900

 

[unksol]

That is the color mode. It has nothing to do with memory, or 64bit windows. It's supposed to be that way.

You can't add memory to a GPU, system memory is automatically shared by windows if needed, and you have more memory now than you'll even use.

 

[UltimateDeep]

If you want to check your true Memory Interface of your GPU, use GPU-Z and you can find out the Memory Bus of the GPU that is installed.

 

[nukemaster]

As others have said, 32 bit is 16.7 million colors and is the general standard. And since most screens can not even display all those colors, you are all good.

It will have ZERO negative effect. You would needs some real good hardware to display or get any more color

 

[smeezekitty]

Yep. The other posters are right.

It is 8 bits each for red,green and blue and either 8 bits are unused or 8 bits of transparency I am not sure.

Only high end professional cards can use more than 8 bits/pixel. 24/32 bit can display almost 16.8 million colors.

The alternatives:

24 bit which is the same as 32 bit without the extra channel - 16.8m colors
16 bit which is usually 5 bits red, 6 bits green and 5 bits blue. Color blending looks a bit less smooth. Common on old cards. I don't mind it. 65.5k colors
15 bit which is 5 bit red, 5 bit green, 5 bit blue, rare due to it not being a multiple of two. 32.7k color and it looks similar to 16 bit.
8 bit which is usually palletized, very old and does not look too great except in the early 1990s - 256 colors
4 bit, 16 colors. Very bad and virtually unheard of now but common in the early 1990s.

2 bit and 1 bit are 4 colors and monochrome respectively. Quite ancient (1980s).

To sum it up, 32 bits per pixel is normal for a modern card and no improvement is possible.