The pixels of a high-resolution display have 3 primary colors. Each of these pri

Question

The pixels of a high-resolution display have 3 primary colors. Each of these primary color is represented by a 32 bit number, and the resolution is 1366 times 768 pixels. (1) How large is the buffer of the graphics hardware (in bytes) so it can store 1 frame? (2) How long does it take to transmit 1 frame over a 1 Gbit/sec local network? (3) Video games require at least 30 frames/second to accommodate fast action scenes and avoid flicker. Is your network fast enough for 30 frames/sec? Why yes/no?

Explanation / Answer

1. For every color bits/pixel = 32 bits/pixel

For 3 colors bits/pixel = 32*3 bits/pixel;

(1 byte = 8 bits)

For 3 colors bytes/pixel = (32*3)/8 = 12 bytes/pixel ;

Total Pixels = 1366 *768 = 1049088 pixels

Total Bytes needed = 1049088*12 = 12589056 bytes.

2. Time required for the frame to be sent over a 1Gbps network : 12589056 * 8(bits/bytes) / 1 (Gigabits/sec)

Time required = 0.1007 seconds

3. For one frame time required is 0.1007 seconds so for 30 frames time required will be 30*0.1007 seconds = 3.02 seconds. Therefore game will flicker.

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