Chart of Real World Data Rates

MEDIA OR PIPELINE
PREFERRED MOVIE FRAME SIZE
THEORETICAL DATA SPEED
kilobits/sec
REAL WORLD DATA SPEED
kilobits/sec

REAL WORLD DATA SPEED
kilobytes/sec
(1kilobyte = 8kilobits)

REAL WORLD DATA SPEED
megabits/sec
           
14.4k modem  
14.4 kilobits/sec
9 kilobits/sec
1.1 kilobytes/sec
 
28.8k modem
80x60
28.8 kilobits/sec
20 kilobits/sec
2.5 kilobytes/sec
 
56.6k modem
120x90
56.6 kilobits/sec
32 kilobits/sec
4.0 kilobytes/sec
 
ISDN 2-channel
160x120
128.0 kilobits/sec
96 kilobits/sec
12.0 kilobytes/sec
 
DSL (Asymmetric Digital Subscriber Line)

320x240
640x480

7000 kilobits/sec
256 - 500 kilobits/sec
32 - 62.5 kilobytes/sec
.25 - .5 megabits/sec
Cable Modem
320x240
640x480
10,000-30,000 kilobits/sec
200 - 600 kilobits/sec
25 - 75 kilobytes/sec
.2 - .6 megabits/sec
MPEG-4 Video
ISMA 1 Profile 

320x240

565 kilobits/sec
565 kilobits/sec
70.6 kilobytes/sec

0.55 megabits/sec
MPEG-1 Video

320x240
 square pixels: computer display

352x240
 non-square pixels: NTSC

1,856,000 kilobits/sec
1150 kilobits/sec
144 kilobytes/sec

1.15 megabits/sec
1.8 megabits/sec max

T1 internet connection sharing 24 users per T1 line
320x240
1500 kilobits/sec
a T1 line is shared by up to 24 users
a T1 line is shared by up to 24 users
1.5 megabits/sec
2x CD-ROM
240x180
2,460 kilobits/sec
2,460 kilobits/sec
300 kilobytes/sec
2.46 megabits/sec
MPEG-2 Video

720x480
NTSC

720x576
PAL

9,800 kilobits/sec
3,500 kilobits/sec
438 kilobytes/sec
3.50 megabits/sec
9.8 megabits/sec max
4x CD-ROM
320x480
4,920 kilobits/sec
4,920 kilobits/sec
600 kilobytes/sec
4.92 megabits/sec
DVD-Videodisc
720x480
9,800 kilobits/sec
9,800 kilobits/sec
1,225 kilobytes/sec
9.8 megabits/sec
10baseT Ethernet LAN/WAN
320x240
10,000 kilobits/sec
160 - 400 kilobits/sec
in 1500 byte packets
20 - 50 kilobytes/sec
in 1500 byte packets
10.0 megabits/sec
DVD-ROM
720x480
11,080 kilobits/sec
11,080 kilobits/sec
1353 kilobytes/sec
11.08 megabits/sec
ATSC Digital TV
(bandwidth can be a single HDTV signal or combinations of SDTV signals and datacasting)
720x486
1920x1080
19,855 kilobits/sec
19,855 kilobits/sec
2482 kilobytes/sec
19.39 megabits/sec
T3 internet connection
320x240
44,200 kilobits/sec
a T3 line consists of 28 T1 lines for a total of 672 users
a T3 line consists of 28 T1 lines for a total of 672 users
44.2 megabits/sec
100baseT Ethernet LAN/WAN
320x240
640x480
100,000 kilobits/sec
   
100 megabits/sec
Analog Video (non-broadcast)
720x486
240,000 kilobits/sec
240,000 kilobits/sec
30,000 kilobytes/sec
240 megabits/sec

 

Speed Meter Test : How fast is your Internet connection?
Speed Demo: How long does it take to download a 1MB file for 56K, 512K, 1Mb, 1.5Mb?

McAfee Security Logo

Speedometer Test: How fast is your Internet connection?

 
Graphic comparing pipelines