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Thread started 11 Jan 2014 (Saturday) 22:56
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color bit depth with no graphics card?

 
pstyle1
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Jan 11, 2014 22:56 |  #1

Hi all,

I just built a new workstation PC, but since the motherboard has built in DVI, HDMI and Displayport outputs, I decided to wait with buying a dedicated GPU. The motherboard will use the intergrated graphics in the CPU instead. I will at some point buy a GPU, but mainly because I also play games on occasion.

However, now when I look at my images, they don't look as good as on my old computer with a dedicated GPU. This is true especially in the shadows where it seems the bit depth is very low. I was under the impression that a dedicated GPU won't have any impact on image quality other than for 3D rendering, games etc. Do I need set the bit depth somewhere? Maybe it's a driver thing?

My new system specs are as follows:

Intel i7-4770K
Asus Z87-Pro motherboard
32GB RAM
500GB WD Velociraptor.
Windows 8.1

Thanks for you help.


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gjl711
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Jan 11, 2014 23:16 |  #2

If you just did the build, are you sure that the correct driver is loaded and not the generic bga one? Check you device manager. Also, check your bit depth.


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Bob_A
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Jan 12, 2014 17:56 |  #3

The only cards I'm aware of that support higher (10 bpc) bit depth are very expensive workstation cards by nvidia and AMD, such as the AMD Firepro cards. Also, for 10 bpc you need a monitor that supports it such as an Eizo or NEC PA series monitor (and a few others).

I've used the onboard graphics from the 4470K and there is zero difference between the results from it and a higher end ATI (but non Firepro) card. It sounds to me that you either have a driver issue or something is wrong with your calibration.

Also, the Win 8 desktop image will show over saturated and over contrasty when using a wide gamut monitor. MS decided that even if you provide an aRGB image for the desktop that it will be converted to sRGB ... Which of course then displays wrong. If you do a search on the forum I posted a work-around.


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MCAsan
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Jan 12, 2014 19:40 |  #4

What does it look like after you do color calibration?




  
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tonylong
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Jan 16, 2014 02:43 |  #5

When I built my workstation (several years ago) I made sure to buy a dedicated graphics card because it was the "best thing" for photography (of course good for gaming as well but I wasn't into gaming).

I've heard that in recent years built-in graphics have improved a lot, although if there are issues, things like calibration and in-monitor adjustments do come into play!


Tony
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color bit depth with no graphics card?
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