Friday, September 17, 2010

Why can I merely select 16 or 32 BPP within the display settings when I own a 64 MB video card?

I get this laptop from someone else who I believe improperly restored the OS. Could it be missing the right drivers?


Answer:

Your eyes can't progress above 32-bit color, and your laptop can't go beyond the physical resolution of anything your screen is. So what do you guess should be there for you to see?
BPP and MB are not one and the same thing. BPP refers to the standard. MB is the memory which affects the performance.
Just a short lesson on computer colors.

Every and adjectives colors are a mixture of the three primary colors, blue, red, and green. Computer architecture was designed to button data within multiples of 8 bits. I know, this doesn't add up, here's why. Video display boards where on earth originally designed to use 5 bits of red and blue with green getting the extra bit. Why? Because our eyes are more sensitive to green-yellow colors so the extra bit give more color depth, but with the majority contained by the human eye sensitivity range. True color is in truth 24bit, 8bits of the three primary. However, it takes far longer to process three groups of 8 bits than it does to process 2 groups of 16 bits. The video card of late discards(wastes memory space) the extra 8 bits and actually displays 24 bit true color. At this time 32 bit color mode is the best your going to win.

By the way, 64MB on a video card is small by current standards.

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