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顯示卡記憶體計算(幫忙)

顯示卡若要以1920X1080像素的24Bits全彩顯示,其顯示記憶體(Video RAM)至少需要多少才能支援此一解析度?(1M=1024K)

1. 4M Bytes 2. 5M Bytes 3. 6M Bytes 4. 7M Bytes

為啥是3?

有人可以附上算式跟解析嗎???實在是搞不懂......

Update:

2073600*24=49766400Bits

請問一下大愛與感恩這24怎麼來的?

一畫素=24Bits?

1 Answer

Rating
  • 8 years ago
    Favorite Answer

    1920*1080=2073600畫素

    2073600*24=49766400Bits

    49766400/8=6220800Bytes

    6220800/1024=6075KB

    6075/1024=5.93MB

    最接近的答案是3. 6MBytes

    2013-07-24 23:23:14 補充:

    可以這麼說。

    色彩模式決定了"每一個畫素的位元數"例如黑白/半色調1位元、灰階8位元256色、高彩16位元65536色、全彩(RGB)24位元16777216色、全彩(CMYK)32位元16777216色

    2013-07-24 23:25:58 補充:

    黑白/半色調1位元(一畫素=1Bits)

    灰階8位元256色(一畫素=8Bits)

    高彩16位元(一畫素=16Bits)

    全彩(RGB)24位元(一畫素=24Bits)

    全彩(CMYK)32位元(一畫素=32Bits)

    Source(s): 自己
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